3M Foam Wrist Rest, Comfortable Support with Durable Fabric Cover with Anti-microbial Product Protection, 18", Black (WR209MB) Foam-filled wrist rest for keyboards with non-skid base encourages neutral wrist posture Durable fabric covering with antimicrobial product protection inhibits the growth of microorganisms, such as bacteria, on the product surface, that can cause stains, odors and product degradation 18" x 2.75" x .75" 30 day satisfaction guarantee