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Various
Nex bulk mixed - mixed, construction
£15.08
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1990 knex with carry - knex, case
£25.14
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Knex silver battery - knex,
£6.99
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Nex thrill rides - k'nex,
£63.10
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New knex thrill rides - rides, infinite
£21.50
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Nex thrill rides - k'nex,
£55.00
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Nex family guy - family, collectible
£68.30
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Nex rocket boost - k’nex,
£130.00
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Knex red 1990s - red, building
£42.30
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11kg large nex bundle toy - 11kg, k'nex
£43.34
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Nex bundle - k'nex,
£8.66
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Nex pac man roller coaster - pac-man,
£19.36
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Nex bulk mixed - k'nex, rods
£10.00
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Nex building set 417 - k’nex,
£34.32
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Nex 417 piece building - building, set
£24.99
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Knex mixed colour 32mm - mixed,
£16.14
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Nex amusement park building - k'nex,
£16.15
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Nex collect build 2 speed - k'nex,
£16.15
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Assorted knex inc new kits - assorted,
£9.73
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Nex mario kart - k’nex,
£21.50
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Knex nex amazing - 8, roller
£28.95
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Nex creation zone box - zone, +
£26.70
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Knex clockwork roller coaster - knex,
£15.08
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Nex kid budding - kid,
£10.00
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100x nex green - green, rods
£2.35
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Nex steel scorpion - steel, roller
£10.99
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Nex thrill rides ferris - thrill,
£16.15
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Knex black box spare - box, parts
£6.52
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Kid nex building set tub - kid, k'nex
£19.36
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Nex nexosaurus rex - k’nex,
£11.50
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100 nex knex yellow 5 - 100, 5-way
£4.38
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Kid nex oodles - kid, of
£23.58
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Knex spare parts bundle - knex,
£10.79
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Nex knex spare - spare, rods
£4.95
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Nex mixed bundle 27kg - k'nex,
£9.73
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Nex trains planes and - k’nex,
£25.99
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Nex - k,
£37.10
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1993 vintage nex - 1993, k'nex
£31.90
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Rare display knex nintendo - knex,
£12.93
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Knex roller coaster typhoon - roller,
£45.74
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Nex thrill rides bionic - k'nex,
£22.00
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Nex beginner fun fast - k’nex,
£6.99
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Nex spares rods - spares.,
£3.30
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Knex street mods tuner - knex,
£8.00
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Nex revolution ferris wheel - k'nex,
£20.00
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Knex building set - set, pieces
£21.49
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Nex bulk mixed - k'nex, rods
£7.59
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Nex first building set 15 - k'nex,
£4.91
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Vintage knex the - knex, original
£31.90
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Vintage 1990s nex - 1990s, k’nex
£10.80
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Nex box random - of, pieces
£4.91
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Knex electric inferno roller - electric, inferno,
£14.99
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Nex serpent spiral - k'nex, motorized
£21.49
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Nex large 45mm - 4,
£4.40
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Hard find nex - to, super
£39.18
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Knex set bundle - knex,
£7.22
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Nex set 34113 275 - k'nex,
£8.65
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Knex spares just over - just, lot
£31.90
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Nex set 12423 - 12423, in
£9.19
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Nex storage case with - k'nex,
£8.66
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Nex collect build dump - &,
£14.01
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Kid nex budding builders - budding,
£10.80
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Kid nex tractor pals - k'nex,
£6.52
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Knex wheels and - wheels,
£6.52
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Nex wheels parts - wheels, 15
£5.45
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Nex large tub bundle - k’nex,
£40.22
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Nex infinite journey roller - journey,
£16.15
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Nex light ferris wheel - ferris,
£16.15
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Nex 6ft motorised ferris - motorised,
£182.70
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Micro nex knex spare rods - micro,
£4.95
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Nex vertical vengeance - k'nex,
£40.00
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Nex imagine cars building - imagine,
£2.00
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Nex purple way 3d - purple,
£2.77
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Nex mixed bundle 5 kilos - 1.5,
£15.08
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Vintage nex 80s - vintage,
£17.99
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Box nex with various - of,
£6.52
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Large nex storage case - k-nex,
£5.00
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Nex sets 430100 12423 in - sets,
£11.33
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Nex micro mixed - mixed, +
£6.51
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Nex assorted lot - k'nex, and
£5.45
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Knex mario kart - knex,
£38.14
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Kid nex spares and - k’nex,
£5.00
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Nex street mods tuner - k'nex,
£6.52
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Classic knex wheels pack - knex, 6
£1.17
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Knex motorcycle and rocket - and,
£2.24
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Nex creation zone - k'nex, building
£6.52
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Nex large storage case - k-nex,
£5.00
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Nex big ball factory boxed - k'nex, factory,
£69.99
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Nex vintage roller coaster - k'nex,
£52.70
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Knex nex model fun - knex, 10
£4.99
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Nex wheel mixed - mixed, bundle
£4.99
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Vintage knex large storage - large, box
£49.99
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Nex kids carry case and - ,
£7.58
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Nex motorised ferris - ferris, wheel
£10.00
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Nex electric inferno roller - k'nex,
£20.43
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Construction toys fun - construction,
£5.99
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Looking for more knex?
Search eBay live — fresh results filtered for the best value, updated every hour.
Browse 96 knex listings currently in our index. Prices range from £1.17 to £182.7, with an average of £20.81. 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 knex →
Try this: meccano set 6 | train set board | kama | meccano box set | lego base plate 32x32 | lego base boards | pirate ship caribbean | meccano case | toy suitcase | brio engine shed
Whether you are looking for a brand-new or second-hand knex, eBay offers one of the largest selections available online. With 96 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 £1.17, while premium listings can reach £182.7 — giving you a wide budget spread to work with. The average price of £20.81 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.