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. The Razer Ergonomic Wrist Rest For Full-Sized Keyboards has a soft memory foam cushion that offers comfortable support ideal for long hours on the keyboard. Encased in a layer of smooth, plush leatherette, it’s also waterproof and easy to clean. The Razer Ergonomic Cooling Gel Keyboard Wrist Rest fuses cooling gel and memory foam together in an ergonomic design to reduce heat build-up and pressure in your wrists. It ensures your wrists maintain ideal alignment without getting sweaty so you can enjoy cool gaming comfort.