Generic Mouse Skates / Mouse Feet for Logitech V320 V450 M505 M525 M545 (2 sets of replacement mice feet) Replacement feet for Saitek Cyborg R.A.T 3, 5, 7, 9 & M.O.O.7 Comes with 2 sets Easy to install Reduces the friction between the mouse and mouse pad Provides a smoother gliding experience / increases tracking