Rubber Band Racers 5-in-1 STEM Experiment Kit (new, open box)

Rainbow Gummy Candy Lab STEM Experiment Kit by Thames & Kosmos Brand New Sealed

Thames and Kosmos Solar Powered Rover Stem Experiment Kit. Brand New In Box

Aeroplanes Airplanes STEM Experiment Kit 5 in 1 + Instruction Thames & Kosmos

Rubber Band Racers 5-in-1 STEM Experiment Kit (new, UNOPENED Box)

Rubber Band Racers 5-in-1 STEM Experiment Kit (new, open box).

Replacement Parts For Thames & Kosmos Simple Machines Stem Experiment Kit