Cosmos One Pair Silicone Palm Wrist Rest Pads Set for Microsoft Surface Book, Microsoft Surface Pro Other Laptop Computer (Black) Package included 2 x palm wrist pads Made of silicone for easy install and remove (non-adhesive) Position the palm pads over the sharp edge for more comfort Dimension:3.9"x3.2"(LxW), 2.5 mm thick Washable and comfortable