Features: new and high quality All unnecessary mouse skate residue is pre-removed for easier application. Reduces friction between the mouse and mousepad for a smoother glide. Carefully designed to fit real mice; after carefully considering the mouse's durability and precision, the shape and thickness have been adjusted for each model. The product material adds PTFE-based lubricant. Achieve precise and comfortable use on various mousepad materials like cloth or nylon. Not only will the product prevent scratching your mousepad, but it will also make your mouse movement smoother and more stable. Package includes: 1 Set x Mouse Feet Specifications: Material: PTFE Color: Black Quantity: 1 set Thickness: 0.75 mm Diameter: 7 mm For: Logitech G1/MX300 M100/M235/M210/M180 M150/MK220 Mouse Note: This product is a replacement mouse foot. After removing the original mouse foot sticker, clean the bottom of the shell with the cotton attached to the package, then stick on the new mouse feet. After removing the transparent protective film on the mouse feet, carefully align the foot groove on the underside of the mouse shell, then apply light pressure to fit the foot. Do not repeatedly attach and detach the foot stickers.