Thames & KosmosGecko Run Marble Run Trampoline Expansion Pack – Extra Stunt for Vertical Marble Run Starter Set; Fast, No-Mess Setup with Residue-free Nano-Adhesive Pads for Hours of Creative Play

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