Patented Health-V Channel relieves pressure on the wrist's median nerve to help prevent carpal tunnel syndrome. Palm support glides with the mouse to encourage healthy, natural movement. Soft, textured surface ergonomically supports palm for all-day comfort. Relaxing memory foam adjusts to fit small or large hands. Certified by the International Academy of Ergonomics. Put extraordinary comfort and support in the palm of your hand with the Fellowes Professional Series Palm Support! Features the patented Health-V Channel which relieves pressure on the wrist's median nerve to help prevent carpal tunnel syndrome. Palm support glides with the mouse to encourage healthy, natural movement, while the soft, textured surface ergonomically supports your palm for all-day comfort. Relaxing memory foam adjusts to fit small or large hands and has curved sides to promote neutral hand and wrist posture. Optical friendly mouse pad improves mouse performance. Unique slider points let you mouse effortlessly on or off mouse pad. Certified by the International Academy of Ergonomics.