Uniquely designed to help keep your mouse at the same height with a chair arm rest for personal comfort and less reaching. Sturdy metal C-clamp with plastic cover keeps platform attached firmly to the edge of the desk up to 1 1/2” thick. Wire clip keeps mouse securely on the platform. Wide neoprene mouse surface works with optical units. Stores neatly beneath the desk to help save valuable work space. Sit-to-Stand Option: No; Color: Black; Color Family: Black; Rotation (Degrees): 360°.