Rev' It - Dual Comp Type A Knee SlidersDual comp knee sliders type A are constructed from a high performance TPU compound, combined with an extra durable PA6 compound. Specially designed for racers who want high performance sliders, these higher quality compounds offer good feedback, giving you maximum durability without compromising your feel on the road. The sliders come in a pair of two, each anatomically shaped to fit either the left or the right knee, and high quality Velcro attaches