Universal Mouse Skatez /Mouse Feet For Microsoft Explorer 3.0 / Intellimouse 1.1 / 1.1 special edition (17.8mm*7.8mm*0.7mm), 3 sets Replacement feet for Microsoft Explorer 3.0 / Intellimouse 1.1 / 1.1 special edition Comes with 3 sets Easy to install Reduces the friction between the mouse and mouse pad Provides a smoother gliding experience / increases tracking