Features: Circular chamfering,smooth experience. It provides you with great advantages of micro aiming and tracking, and has the feeling of floating. It will not wear out as quickly as traditional PTFE feet, and you can use it almost permanently. Mouse feet sticker is made of aluminosilicate glass, fast and smooth. Round Edges Perfectly polished ultra smooth round edges will provide you with the smoothest sliding ever. brand new and high quality Specifications: Material: Premium Aluminosilicate Glass Thickness: 0.8mm Quantity: 1Set Color: Cross Purple Black, Maple Leaf Red (optional) Note: 1. Confirm that the residual part of the President's foot sticker is cleaned before installation. 2. The glass feet will also be worn by particles such as dust. 3. The glass foot sticker may be damaged in case of sharp objects and severe impact. 4. The glass foot sticker cannot be removed and pasted repeatedly after installation. 5. Please regularly check the bottom of the foot sticker and the mouse pad for dirt and other impurities to extend its use time. If you have any other problems, please contact us . Package includes: 1Set x Mouse Feet