Features: High Quality!Highly recommended! high smoothness and high wear-resistance. Decrease the friction between the mouse and the mouse pad caused by the movement, reach the effect of maintenance. It will greatly increase the smoothness between the mouse and the mouse pad after using, allow you to experience the feeling of freely flying. The work of mouse skates is so deliberate and carefully especially filing up the edge of chamfering that it can avoid accident scuffing for mouse skates effectively. Easy to apply and remove without traces Replace your old mouse feet for that for extra glide to increase your performance in game. Package Includes: 2 Packs x Mouse Feet Stickers Specifications: Type: Mouse Pads Fit for: for M510 Mouse Color: Black Material: Plastic Package Size:appprox.5x5x1cm/1.97x1.97x0.39in Quantity: 2 Sets note: This product is a replacement mouse feet. After removing the original mouse foot sticker, clean the bottom for shell by the alcohol cotton which is attached in the package, and then paste the new mouse feet on. After removing the transparent protective film on the mouse feet, carefully align the feet groove on the mouse bottom for shell, then apply slight pressure to fit the foot. Do not repeatedly stick and peel off the foot stickers