K nex sets
K nex sets for sale on Ireland's largest auction and classifieds sites
Browse 48 k nex sets listings currently in our index. Prices range from £1.99 to £100.01, with an average of £26.97. 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 →
Budget picks — under £16
This your opportunity • Own nex gear • White 12v motor - Free postage - New and Used
Steamagination connection steam • Science technology engineering • Arts math child - Free postage - New and Used
Get creative this • Nex beginner builds • Building set great - Free postage - New and Used
Let your children • Introduced endless building • Possibilities nex fast - Free postage - New and Used
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Nex 43010 construction • Set yellow suitcase • Checked complete instructions - Free postage - New and Used
Nex 34013 construction • Set red case • 275 pieces makes - Free postage - New and Used
Nex 34113 classic • Construction set red • Case 275 pieces - Free postage - New and Used
Over 100 pieces • Included build variety • Different fast vehicles - Free postage - New and Used
Building set construction • Toy kids gift • Fun next level - Free postage - New and Used
Nex jumbo jet • Let your children • Introduced endless building - Free postage - New and Used
Item nex power • 21313 creative set • Great gift collector - Free postage - New and Used
These fun vehicles • Are bound crush • Their opponents use - Free postage - New and Used
Nex education stem • Explorations gears building • Set connection steam - Free postage - New and Used
Nex imagine - Free postage - New and Used
Knex basic builder • Building set new • Box - Free postage - New and Used
Nex thrill rides • Twisted lizard roller • Coaster set bright - Free postage - New and Used
Mid-range — £16 to £30
Nex infinite journey • Roller coaster build • Set slingshot 347 - Free postage - New and Used
Parts pieces sets • Not have instructions • Kid knex ideal - Free postage - New and Used
Unleash futuristic fun • Nex cyborg creatures • Building set where - Free postage - New and Used
Easy build parts • Nex beginner model • Building set 141 - Free postage - New and Used
Wizard vendetta smurfs • Matrix flintstones teenage • Mutant ninja turtle - Free postage - New and Used
Let your children • Unleash their creativity • Own vehicles nex - Free postage - New and Used
- Free postage - New and Used
Build models kid • Nex oodles pals • Building set specifically - Free postage - New and Used
Please see photos • What included this • Large bundle - Free postage - New and Used
1996 nex red • Plastic case contains • Two sets building - Free postage - New and Used
Barely used large • Box nex pieces • Comes couple leaflets - Free postage - New and Used
Unlock creative fun • Nex model building • Set 408 durable - Free postage - New and Used
Nex big value • Models set comprehensive • That includes 408 - Free postage - New and Used
Utilize your imagination • Nex motorized creations • Building set variety - Free postage - New and Used
- Free postage - New and Used
Nex build working • Roller coaster plastic • Building set children - Free postage - New and Used
Premium — over £31
- Free postage - New and Used
Explore world engineering • Creativity nex 16511 • Imagine creation zone - Free postage - New and Used
Create wow nex • Imagine creation zone • Model building set - Free postage - New and Used
Nex oodles pals • Models building construction • Toy set booghe - Free postage - New and Used
Educational objective function • Var window execute • Attribute truncate updated - Free postage - New and Used
Knex architecture london • Eye motorized building • Set sealed bagged - Free postage - New and Used
Used complete manual • Free postage - Free postage - New and Used
Nex cyber ultra • Full set retired • Space robots theme - Free postage - New and Used
Creative nex building • Set includes classic • Parts why choose - Free postage - New and Used
Build typhoon frenzy • Tsunami surge with640 • Colourful nex pieces - Free postage - New and Used
Nex classic amusement • Park building set • Perfect gift christmas - Free postage - New and Used
Set construction toy • Kids gift nex • Beginner builds building - Free postage - New and Used
- Free postage - New and Used
Empire state building • Nex architecture set • Construct your very - Free postage - New and Used
Vintage nex roller • Coaster 63030 limited • Edition gear building - Free postage - New and Used
Brand new sealed • Product aside from • Outer packaging tracking - 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
🔥 Best eBay deals on k nex sets
See all listings on eBay →These 48 listings for k nex sets are the lowest-priced items currently in our index. Prices are sorted ascending so you can quickly gauge the market before going further.
K'NEX Gear cog White for 12v
This your opportunity • Own nex gear • White 12v motor
£2
K'NEX 33017 Imagine Power and
Steamagination connection steam • Science technology engineering • Arts math child
£10
*NEW* 125-Piece K'Nex Beginner
Get creative this • Nex beginner builds • Building set great
£10
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 £1.99, while premium listings can reach £100.01 — giving you a wide budget spread to work with. The average price of £26.97 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.