Optical Trackball PC Thicken Wrist Comfort Mouse Pad MO-505FrontSide Material: Sponge & Cloth.BackSide Material: Neoprene Rubber. (This Material will avoid Mouse Pad from Sliding)Use For: Perfect for Optical Mouse & Trackball Mouse & Mechanical Mouse.Slim & Attractive Designing， Non-Reflective hard surface.Human Design， will make your Wrist comfortable when using mouse.This Mouse Pad will help your Mouse get a Accurate Tracking and click， Wonderful partner for Mouse!Packages:1x Wrist Comfort Mouse Pad (Mouse Not Included).