1、MULTI FUNCTION: This positioning square can not only be used for measuring, but also for positioning, assisting in pasting or welding two wooden boards at right angles. 2、SECURELY FIXED: The clamp is adjustable to ensure that the wooden boards are firmly attached to the positioning square and will not move. 3、LONG LASTING: Made from aluminum alloy, this right angle clamp set is rust and corrosion prevention, long lasting, and can be used for a long time. 4、HIGH PRECISE: The positioning square has been exquisitely made with precise size and angle, ensuring perfect right angle for assembly. 5、WIDE APPLICATION: This corner clamp is widely used for assembly and DIY, and can clamp boxes, drawers, cabinets, frames, furniture cabinets, etc.