Cooling gel-infused cushion The Razer Ergonomic Wrist Rest Pro for full-sized keyboards has a cooling gel-infused memory foam cushion that’s wrapped in a special heat-transfer fabric reducing heat build-up and pressure on your wrists so you stay cool and comfortable through gaming marathons. Anti-slip rubber feet No matter how intense your gaming gets both keyboard wrist rests have anti-slip rubber feet on their underside to ensure they stay fixed to your desk. Compatible with full-sized keyboards Enclosed in a solid-edged frame to ensure durability Razer keyboard wrist rests are designed to seamlessly fit full-sized keyboards perfectly..