With this tool, you can fixing the boards or frames at the angle of 90, which is quick and utility. Easy to use: it is easy to use even with one hand, it just need one hand to operation, the another hand is free for the workpiece. For conrner and T joints, even with different board thickness, which has a wide application. This tool set used for the boards with a thickness of 5~22mm, you can use it for the frame fixing and so on. The angle he-ad is removable, you can change the different angle he-ads for your different needs, which is convenient. This tool is utility to use in your dailylife or your woodworking. With this tool, you can fixing the boards or frames at the angle of 90 degree which is time saving and energy saving. and try it, it will not let you down. Woodworking Angle Clamp Utility Fixation Tool Clamping range: 5~22mm Angle: 90 Suitable for woodworking, connection for cabinet and furniture repair, photo frame reinforcement, wooden DIY design, etc. Colour:red+black Material:plastic Package Contents: 4 x Woodworking Clamp 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.