Ergonomic design and adjustable under table swivel wrist pad adjustable. The solid metal clip can be fixed on the table with the thickness of less than 7cm, the thickness of more than 7cm, the edge slope is too , the edge has decorative strips, these are not recommended. Space saving, the can be rotated to hide under the table, easy to use, can be used at multiple angles, and can be rotated under the table when not in use. Dual use, not only the mouse board, also the shelf to make more space for the desktop without clutter. colour: black Material: metal size: 24 * 19.6cm Package Contents: 1*Rotating tray mouse pad Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.