Pulsar Superglide Glass XXL Mousepad, ltimate in Performance and Durability, White Dimension : XXL 38.5 x 16.5 x 0.16 | 4mm Aluminosilicate glass (Gorilla Glass) with high-density silicone bottomALUMINO-SILICATE GLASS Surface - High level of durability and resistance to scratches and cracks and A unique surface pattern.Multi-layered construction - Constructed with several layers of materials to enhance its capabilities and effectiveness.Anti-Slip Bottom - The fully molded high-density silicone rubber design provides maximum adherence to surfaces, ensuring stability and reducing the risk of slips.The ultimate in performance and durability