Kingjinglo was founded in 1999. We are committed to providing consumers with quality products and services.Specification: Compatible with: For RAZER VIPER Ultimate MouseArc edge designColor: White thickness:appprox. 0.8mmMaterial: PTFESize:appprox. 9x7cm/3.54x2.76inQuantity: 2set ackPackage Includes: 1 Pack x Mouse Skate for RAZER VIPER Ultimate Mouse(2Set)note: This product is a replacement mouse feet. After removing the original mouse foot sticker, clean the bottom 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 shell, then apply slight pressure to fit the foot.Do not repeatedly stick and peel off the foot stickers.