Product Description The ergonomic design can relieve the fatigue of the arm hanging in the air for a long time, and it is convenient to improve the incorrect sitting posture. At the same time, it increases the desktop storage space and easily organizes the desktop. Material: cold rolled steel Color: black, white Length: 25cm Width: 52cm/62cm/75cm Package includes: 1 piece keyboard tray Notice: Since the dimensions are all measured by hand, there may be errors, please refer to the actual product received. Please confirm the size of your desk before purchasing.