Cosmos &reg; 8 PCS/ 2 Sets Replacement Mouse Skates / Mice Feet for Logitech MX610 MX620 MX600 MX1000 Replacement feet for Logitech MX610 MX620 MX600 MX1000 Comes in 2 sets Easy to install Reduces the friction between the mouse and mouse pad Provides a smoother gliding experience / increases tracking