Features: All the useless scraps mouse skates are preremoved for use. Reduces the frictions between the mouse and mouse pad.Provides a smooth glides experience. Strictly according to real mouses,after consider the mouse durability and accuracy carefully,shape, the thickness adjusted for every model. The material of the product adds lubricating on the base of PTFE. Achieve precise and comfortable operation on different materials mouse pads such as cloth . The product not only scratch mouse pad, but also makes movement of the mouse smooth and more stable . Specifications: Material: PTFE Color: Black Quantity: 1set Thickness: 0.75mm Diameter: 7mm for: for G1/MX300M100/M235/M210/M180M150/MK220 Mouse Package Includes: 1Set Mouse Feet note: Please allow 0-1cm error due to manual measurement. Please make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item. Thank you!