Thames and Kosmos Rubber Band Racers 5 in 1 STEM Experiment Kit New

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

Thames Kosmos Mega Cyborg Hand STEM Experiment Kit - UNUSED BUT DAMAGED BOX

New In Box Thames & Kosmos Lollipop Lab STEM Experiment Kit

*NEW w/BOX DAMAGE* Thames & Kosmos Gumball Machine Maker STEM Experiment Kit

Catapults and Crossbows Physics Science Experiment Kit Thames & Kosmos

Thames & Kosmos Geckobot Robot Walks Up Walls Experiment Kit - STEM New in Box!

Thames and Kosmos Wind Power 2.0 Experiment building Kit, Science COMPLETE READ