USED: K'nex Mirco Mini Roller Coaster Assorted Parts & Pieces. In good condition. Comes with what is shown only. Electronics work. Batteries required, not included. Comes with motorized launcher, light up car, and a speaker (no cord). Believed to have come from Rocket Boost Roller Coaster set. Probably not complete but enough pieces for play. There is 3.3 lbs of pieces. Check out our other listings for more baby/kids items and toys and save on combined shipping!!