PU Leather Anti-Slip Grip Decal for Logitech MX Master 3s Mouse - Durable, Sweat-Resistant Sticker Set - Improves Handling and Comfort - Mouse Grip Tape Accessory *Please note that this is not the mouse itself.* Please degrease the surface thoroughly before applying. It adhered without issue to a brand new mouse, but when applied to a mouse I had been using previously, the thumb grip started to peel off gradually. Thank you for viewing.