The desktop extension bracket is designed to clamp the keyboard tray and folds after use. Made of high quality materials and durable. Its design is simple, but it is very practical to use and gives you a good experience. No punching design, just clamp it on the desktop and tighten it, it will not damage the desktop. 90-degree folding and storage, takes up no space, has low noise, strong bearing capacity and will not fall off. One-touch folding, comfortable to hold, easy to place and ' break. Adjustable screw design, the clamp can be installed on countertops of different thicknesses. Simple structure, easy to use, not easy to deform, you can use it with confidence. Dimensions: 19.00X8.40X2.50 cm/7.47X3.30X0.98 inches Thickness range: 0.5-7.5cm Colour:black Material:cold rolled steel Package Contents: 1 pair of brackets Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.