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. SECURELY FIXED: The clamp is adjustable to ensure that the wooden boards are firmly attached to the positioning square and will not move. 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. HIGH PRECISE: The positioning square has been exquisitely made with precise size and angle, ensuring perfect right angle for assembly. WIDE APPLICATION: This corner clamp is widely used for assembly and DIY, and can clamp boxes, drawers, cabinets, frames, furniture cabinets, etc. Item Type: 90 Degree Positioning Square Material: Aluminum Alloy 2 x 90 Degree Positioning Square 4 x Adjustable Fixation Clamp