DescriptionDesigned for clamping keyboard tray, the desk extension plate support can be folded after use. Made of premium material for long time and durable use. It has a simple design, but very practical in use, giving you a good using experience. Also can be a good gift choice for your friends, they will like it.Features-Color: Black-Material:Iron-Size: 19.00X8.40X2.50cm/7.47X3.30X0.98in Thickness range: 0.5-7.5cm - Punch free design, just clamp on tabletop and tighten, will not damage the desktop. - 90 degree folding storage, not taking up much space, low noise, strong bearing and not coming off. - One key to fold, comfortable to hold, easy to place, will not crack. - Adjustable screw design, the clamp can mount on different thickness table. - Simple in structure, easy to use, not easy to deform, you can use it with confidence.