3M™ Gel Wrist Rests use gel technology to create a wrist rest that is firm enough to provide the support you need, but soft enough for optimal comfort. 3M™ Gel Wrist Rests are guaranteed not to leak and are puncture resistant under normal use. The black leatherette covers feature antimicrobial product protection which inhibits the growth of microorganisms, such as bacteria, on the product surface, that can cause stains, odours and product degradation. The 3M™ Precise™ Mousing Surface is a micro-grooved surface that enhances the precision of optical mice at fast speeds. It also helps to extend battery-life of wireless mice up to 50 percent. 3M™ Gel Wrist Rests with black leatherette covered are manufactured using recycled material.