K nex sets
K nex sets for sale on Ireland's largest auction and classifieds sites
Nex 141 piece building set - 141, - £6.45
Great fun educational • Construction set from • Nex perfect kids - Free postage - New and Used
Great fun educational • Construction set from • Nex perfect kids - Free postage - New and Used
Vintage nex sets full - 4, - £52.69
Sets nex all • Boxes are full • Pieces manuals instructions - Free postage - New and Used
Sets nex all • Boxes are full • Pieces manuals instructions - Free postage - New and Used
Nex beginner vehicles - beginner:, 10 - £9.99
Over 100 pieces • Included build variety • Different fast vehicles - Free postage - New and Used
Over 100 pieces • Included build variety • Different fast vehicles - Free postage - New and Used
Nex 863 piece - 863, - £32.00
New unopened some • Slight damage box - Free postage - New and Used
New unopened some • Slight damage box - Free postage - New and Used
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Nex complete sets - k'nex, - £16.15
Nex complete sets • See photos - Free postage - New and Used
Nex complete sets • See photos - Free postage - New and Used
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48 listings · from £2.99 · avg £26.41
⚠️ These listings were last updated more than 13 days ago.
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Browse 48 k nex sets listings currently in our index. Prices range from £2.99 to £333.1, with an average of £26.41. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about k nex sets →
Nex model ultimate - 35, - £11.99
- Free postage - New and Used
- Free postage - New and Used
Nex building set - building, - £3.30
Not sure complete - Free postage - New and Used
Not sure complete - Free postage - New and Used
New nex ripping raptor - k'nex, - £10.80
New nex ripping • Raptor motor building • Construction set age - Free postage - New and Used
New nex ripping • Raptor motor building • Construction set age - Free postage - New and Used
Nex thrill rides in - k'nex, - £31.90
Nex thrill rides • Classic amusement park • Building set gear - Free postage - New and Used
Nex thrill rides • Classic amusement park • Building set gear - Free postage - New and Used
Large nex bundle multiple - large, k'nex - £12.94
Large knex bundle • Comprising multiple different • Sets makes animals - Free postage - New and Used
Large knex bundle • Comprising multiple different • Sets makes animals - Free postage - New and Used
Nex assorted bundle - k'nex, - £5.98
You will receive • Large bag random • Assorted knex peices - Free postage - New and Used
You will receive • Large bag random • Assorted knex peices - Free postage - New and Used
Kid nex 115 - k'nex, - £12.94
Kid nex 115 • Pcs model 85335 • Construction building set - Free postage - New and Used
Kid nex 115 • Pcs model 85335 • Construction building set - Free postage - New and Used
Large bundle mixed - bundle, k’nex - £31.90
Large bundle mixed • Knex there roughly • 10kg nex here - Free postage - New and Used
Large bundle mixed • Knex there roughly • 10kg nex here - Free postage - New and Used
Nex musical ferris wheel - k'nex, - £31.90
This set • Nex musical ferris • 15133 unique construction - Free postage - New and Used
This set • Nex musical ferris • 15133 unique construction - Free postage - New and Used
Nex pirate ship complete - k'nex, - £29.99
- Free postage - New and Used
- Free postage - New and Used
Nex building set - k’nex, 417 - £32.99
Create wow nex • Imagine creation zone • Model building set - Free postage - New and Used
Create wow nex • Imagine creation zone • Model building set - Free postage - New and Used
Nex model building set - 52, - £10.80
Knex building set • Plus additional sets • Instructions box great - Free postage - New and Used
Knex building set • Plus additional sets • Instructions box great - Free postage - New and Used
Nex force build and blast - k, - £3.31
Opened manual included • Some parts missing • See pictures details - Free postage - New and Used
Opened manual included • Some parts missing • See pictures details - Free postage - New and Used
Nex powerpack 22103 building - 22103, - £3.99
Suitable ages box • Shows minor wear • Edges corners - Free postage - New and Used
Suitable ages box • Shows minor wear • Edges corners - Free postage - New and Used
Nex classics building sets - building, - £7.00
Have too boxes • Knex think they • Make both models - Free postage - New and Used
Have too boxes • Knex think they • Make both models - Free postage - New and Used
Nex 43010 vintage - k'nex, - £6.52
Complete set instructions • Case some spare • Parts see pic - Free postage - New and Used
Complete set instructions • Case some spare • Parts see pic - Free postage - New and Used
Vintage nex case and pieces - vintage, - £17.22
Vintage nex case • Pieces bundle knex • Condition used see - Free postage - New and Used
Vintage nex case • Pieces bundle knex • Condition used see - Free postage - New and Used
Job lot bundle - job, 51 - £12.99
Good batch mixed • Cogs - Free postage - New and Used
Good batch mixed • Cogs - Free postage - New and Used
Kid knex nex - knex, complete - £15.95
Parts pieces sets • Not have instructions • Kid knex ideal - Free postage - New and Used
Parts pieces sets • Not have instructions • Kid knex ideal - Free postage - New and Used
Basic fun nex - basic, - £9.95
Age suitability ideal • Children aged enjoy • Imaginative play while - Free postage - New and Used
Age suitability ideal • Children aged enjoy • Imaginative play while - Free postage - New and Used
Nex robot building set - set,, 2 - £6.99
Nex robot building • Set builds models • Pieces years plus - Free postage - New and Used
Nex robot building • Set builds models • Pieces years plus - Free postage - New and Used
Nex bundle sets - k'nex, star - £45.00
Corkscrew coaster ferris • Wheel star shooter • Purple piece grey - Free postage - New and Used
Corkscrew coaster ferris • Wheel star shooter • Purple piece grey - Free postage - New and Used
Nex classics motorized - classics, - £28.99
Utilize your imagination • Nex motorized creations • Building set variety - Free postage - New and Used
Utilize your imagination • Nex motorized creations • Building set variety - Free postage - New and Used
Nex big ball - set, or - £333.10
Nex big ball • Factory set construction • Toy that allows - Free postage - New and Used
Nex big ball • Factory set construction • Toy that allows - Free postage - New and Used
Knex family guy - stewie, the - £21.50
Family guy • Please check out • Photos which are - Free postage - New and Used
Family guy • Please check out • Photos which are - Free postage - New and Used
Vintage nex job - vintage, - £21.50
This vintage nex • Job lot includes • Motorised nexosaurus creator - Free postage - New and Used
This vintage nex • Job lot includes • Motorised nexosaurus creator - Free postage - New and Used
Nex typhoon frenzy roller - frenzy, - £18.82
Roller coaster • Nex typhoon frenzy • Building set complete - Free postage - New and Used
Roller coaster • Nex typhoon frenzy • Building set complete - Free postage - New and Used
Nex building set 417 - k’nex, - £21.49
Nex building set • 417 piece construction • Kit storage tub - Free postage - New and Used
Nex building set • 417 piece construction • Kit storage tub - Free postage - New and Used
Nex 30005 starter set - k'nex, - £8.66
Nex 30005 starter • Set 175 parts • Complete missing green - Free postage - New and Used
Nex 30005 starter • Set 175 parts • Complete missing green - Free postage - New and Used
Nex downhill thrill - k'nex, - £14.99
Nex downhill thrill • Set its fully • Complete except race - Free postage - New and Used
Nex downhill thrill • Set its fully • Complete except race - Free postage - New and Used
Set nex k nextra - 4, k'nex - £22.94
This set nex • Maxima nextra bonus • Models comprising 32064 - Free postage - New and Used
This set nex • Maxima nextra bonus • Models comprising 32064 - Free postage - New and Used
Nex cars educational - k'nex, - £4.38
Nex cars educational • Building set plastic • Construction toy interlocking - Free postage - New and Used
Nex cars educational • Building set plastic • Construction toy interlocking - Free postage - New and Used
Nex building set - -, excellent - £15.08
Nex buildings set • Excellent condition all • Pieces are present - Free postage - New and Used
Nex buildings set • Excellent condition all • Pieces are present - Free postage - New and Used
Nex construction set - k’nex, - £35.00
Large nex bundle • Original carry case • Instruction manuals wide - Free postage - New and Used
Large nex bundle • Original carry case • Instruction manuals wide - Free postage - New and Used
Nex build learn - &, - £39.71
Working roller coaster • Your child can • Explore stem concepts - Free postage - New and Used
Working roller coaster • Your child can • Explore stem concepts - Free postage - New and Used
Basic fun nex - k'nex, click - £34.95
Nex building sets • Included set step • Manual help bring - Free postage - New and Used
Nex building sets • Included set step • Manual help bring - Free postage - New and Used
Knex nex ball and - knex, socket - £2.99
This your opportunity • Own knex nex • Ball socket black - Free postage - New and Used
This your opportunity • Own knex nex • Ball socket black - Free postage - New and Used
Nex delux 375 piece - k'nex, maybe - £9.73
Buy confidence excellent • Positive feedback dispatched • Quickly tracked well - Free postage - New and Used
Buy confidence excellent • Positive feedback dispatched • Quickly tracked well - Free postage - New and Used
Nex power and play - k'nex, - £49.00
Includes 529 color • Coded rods connectors • Spinning wheels bendable - Free postage - New and Used
Includes 529 color • Coded rods connectors • Spinning wheels bendable - Free postage - New and Used
Nex knexosaurus rex - k'nex, - £4.91
Nex knexosaurus rex • Motorized walking dinosaur • Building set 255 - Free postage - New and Used
Nex knexosaurus rex • Motorized walking dinosaur • Building set 255 - Free postage - New and Used
Nex thrill rides in 1 - thrill, 3-in-1 - £58.99
These durable plastic • Pieces can easily • Attached one another - Free postage - New and Used
These durable plastic • Pieces can easily • Attached one another - Free postage - New and Used
Nex battlers x thrasher - k-nex, - £12.99
These fun vehicles • Are bound crush • Their opponents use - Free postage - New and Used
These fun vehicles • Are bound crush • Their opponents use - Free postage - New and Used
Knex architecture london - architecture, - £34.50
Knex architecture london • Eye motorized building • Set sealed bagged - Free postage - New and Used
Knex architecture london • Eye motorized building • Set sealed bagged - Free postage - New and Used
Try this: knex roller coaster | knex roller coaster sets | lattice fence | lego 10185 | lego 10211 | lego 10228 | lego 3221 | lego 42009 | lego 42030 | lego 42043
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Everything you need to know about k nex sets
Whether you are looking for a brand-new or second-hand k nex sets, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £2.99, while premium listings can reach £333.1 — giving you a wide budget spread to work with. The average price of £26.41 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.