Tames & Kosmos Gecko Run Marble Run Snake Expansion Pack - Extra Zigzag Maze for Vertical Marble Run Starter Setup; Quick Mess Free Setup, No Residue Nano Adhesive Pads for Hours of Creative Play!

Thames & Kosmos Gecko Run: Marble Run Snake Expansion Pack, Toy Model Kit for Creative Marble Runs, STEM Toys to Foster Problem-Solving Skills, Playable Only with Starter Set, Age 8+

Thames & Kosmos Gecko Run: Marble Run Twister Expansion Pack, Toy Model Kit for Creative Marble Runs, STEM Toys to Foster Problem-Solving Skills, Playable Only with Starter Set, Age 8+

Thames & Kosmos Gecko Run, Kids Science Kit, Learning Resources, Hands-on Experimentation, Problem Solving through Trial and Error, STEM Toys, Ages 8+