ship from Japan Compatible Mouse: Logitech G Pro Wireless Thickness: 0.8mm Be sure to remove the manufacturer’s mouse sole before installing the Corepad Skatez. The manufacturer’s mouse sole has two layers, as does the central ring. Peel off both layers of the mouse sole and you’ll see the plastic and screw holes. 2 sets included Made of 100% fluororesin (Teflon / PTFE)