This is a replacement Rounded Edges Curved mouse feet for the mouse skate,with smooth material Replacement feet Compatible for Logitech G502 Proteus Core / G502 Proteus Spectrum / G502 HERO Wired mouse Package included: X2Sets white/black mouse skates ,2Pcs X Alcohol Pads Having characteristics of non-adhesively, high smoothness and high wear-resistance.M Adhesive) 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. Instruction manual： 1.Remove the original mouse skates on the mouse 2.Clean the excess adhesive from the feet slot and keep it dry 3.Once they are all installed, there is a plastic protection film you need to remove from the pads 4.Only touch the edge of the foot patch and place it in the center into the feet patch slot. After pasting, do not peel it repeatedly, otherwise, it may cause the feet to patch to deform or affect the fitting density 5.Pressure on the circumference of the feet sticker, or pressure on the mouse pad to ensure that the mouse skates are flat and attached