K’nex Star Shooter Roller Coaster Building Set

K'NEX Clockwork Roller Coaster 305 pcs Building Set 15406 Rare Un-used complete

K'NEX Thrill Rides – Bionic Blast Roller Coaster Building Set

K'NEX Pirate Ship Park Motorized Kit Set 15139 and roller coaster for spares

BOX ONLY - K'NEX Vintage 1995 Roller Coaster Loop Version 63030 - EMPTY BOX ONLY

K'nex Thrill Rides Looping Lightup Roller Coaster Building Set

Knex Revolution Roller Coaster -Complete & Ferris Wheel

K'NEX Hot Shot! Video Coaster (Rare) Complete Boxed with Instructions