Features: Brand new and high quality. Circular chamfer for a smooth experience. Provides significant advantages in micro-aiming and tracking, giving a floating sensation. Doesn't wear out as quickly as traditional PTFE feet, offering near-permanent usability. Rounded edges, perfectly polished ultra-smooth round edges provide the smoothest glide ever. Mouse feet stickers are made of aluminum silicate glass for fast and smooth movement. Specifications: Material: Premium Aluminum Silicate Glass Thickness: 0.8 mm Quantity: 1 Set Color: Black, White (Optional) Used For: Logitech GPRO X Superlight (GPX) Note: 1. Please clean off any remaining old mouse feet sticker residue before installation. 2. Glass feet can also wear down from particles like dust. 3. Glass foot stickers can be damaged by objects and strong impacts. 4. Glass foot stickers cannot be removed and re-applied repeatedly after installation. 5. Regularly check the bottom of the foot sticker and mouse pad for dirt and other contaminants to extend usage. Contact us if you have any other issues. Package Includes: 1 Set x Mouse Feet