K'nex Screamin Serpent Roller Coaster Car Replacement Part Knex 6 People 63153 | eBay
MICRO KNEX Dragon's Drop/Firestorm Freefall ROLLER COASTER CAR Suspended People | eBay
Red Coaster Car - K'NEX Replacement Parts 2
Designing my own micro knex roller coaster car. Decided to print what I have so far as one print just to see the size of it (Includes: frame, bolts, nuts, and bearings).