Gecko Run Marble Run Spinners Expansion Pack by Thames & Kosmos - Extra Stunt for Vertical Marble Run Starter Set; Fast, No-Mess Setup with Residue-Free Nano-Adhesive Pads for Hours of Creative Play

What's included: The Spinners Expansion Pack comes with over a dozen parts to complement the Gecko Run Starter Set, including two gear wheels to add some spinning action to your marble run--use them individually or together for surprising effects! Also comes with two additional tracks, marbles, and nano-adhesive pads. Innovative: Design your own vertical marble runs with this specially designed system of flexible tracks that does not require any support structures, allowing you to build higher with fewer pieces. Intuitive & Mess-free: Tracks attach to smooth surfaces with the help of clever nano-adhesive pads that create a strong but temporary bond; the pads are not glue-based and can be quickly and easily repositioned without leaving behind damage or sticky residue. Open-ended & Educational: Combine different configurations and environments for endless possibilities; develop engineering and problem-solving skills and see physics in action. Tracks are made from renewable raw materials., Manufacturer: Thames & Kosmos