PU Leather Anti-Slip Grip Decal for Logitech MX Master 4 Mouse – Durable, Sweat-Resistant Sticker Set – Improves Handling and Comfort – Mouse Grip Tape Accessory *Please note that this is not the mouse itself.* (This product is black. It is not an official manufacturer product.) Please degrease the surface well before applying. You might struggle if you're not the type to figure things out without instructions. The dimensions are precise, so you'll need to make minor adjustments while applying to avoid excess material. Thank you for viewing.