Originally released to the public in August of 1997, Intuitive Race Products frame sliders have endured many years of testing in the grueling conditions of a racing environment. Our internal testing and that of our Sponsored Contingency riders has given us a a wealth of knowledge regarding how to build the best frame sliders possible. All sliders are made from an ultra-hard plastic that offers the perfect balance of strength and flexibility. IRP sliders reduce the chance of frame damage in the event of a spill.