Features: The foot stick is made of aluminosilicate glass, fast and smooth. 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. Round Edges - Perfectly polished ultra- smooth round edges will provide you with the smoothest sliding ever.The round and curved edge have super fitness, wont scratch the mouse pad. Filmly adhesive and the removable adhesive technology makes no-residue when remove. Specifications: Product Name: TALONGAMES Mouse Skates Model: for G403/603/703 Mouse Material: Premium Aluminosilicate Glass Color: Black Package Size:as Pictures Quantity:1Set Mouse Skin (Without Mouse) Package Includes: 1Set Mouse Skin (Without Mouse) note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!