Apart from looking cool, these desk mats keep surfaces free from scratches and stains. Great for making spaces more organized with minimal effort. These mats have a smooth surface and a non-slip base. They're durable and will last long without fraying or pilling. Optical and laser mice are supported. .: Materials: 100% polyester front; 100% natural rubber backing .: One size: 31.5" × 15.5" (80cm × 39.4cm ) .: Supports optical and laser mice .: Smooth surface .: Anti-fray edges .: Black non-slip base