3M™ Antimicrobial Foam Keyboard Wrist Rest, 18 x 2.75, Black (MMMWR209MB) Each3M Antimicrobial Foam Wrist Rest Mouse pad with foam wrist rest and nonskid base encourages neutral wrist posture. Durable fabric cover with antimicrobial product protection inhibits the growth of microorganisms, such as bacteria, that can cause stains, odors and product degradation. Global Product Type: Keyboard Laptop Wrist Rests Wrist Filling Material: Foam Mouse Pad Wrist Rest Type: Keyboard Wrist Rest Color(s): Black Theme: Solid Color Depth: 2.