Drop your Sphero onto the rubberized rails, allowing it excellent grip as it accelerates the wheel forward. Once it's rolling at speed, reverse your Sphero direction for amazingly fast counter spins that cause the wheel to roll even faster! This thing is All Rights Reserved for the Sphero Contest.This design can be extruded, curved and heat or chemically welded to form the final shape. It can also be made from two rings and a cylinder joined by welding into final shape.