Aegis™ Microbe Shield treated (anti-microbial) protection prohibits bacteria and algae growth on the pad surface. It's a mouse pad and wrist rest all in one so there's no need to buy separate supports. Temperature sensitive Visco Elastic Memory Foam provides maximum comfort on wrist or palms; recognizes and relieves local pressure when in use. "Five Star" seal of ergonomic excellence by the Oxford Research Institute for design, quality and comfort. Mouse pad can be positioned in a variety of angles. Large mouse surface offers a wide range of motion with minimal shoulder and wrist strain. Gathers infrared sensors with precision accuracy and works great with all optical or standard mouse units. Lycra surface breathes and cleans easily, plus aids in the dissipation of moisture and perspiration. Contoured nonabrasive edges with nonskid base.