Description Designed 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. 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