【Premium Quality】Made of aluminum alloy. Made from a solid aluminum block. Surface treatment: anodized blue surface, corrosion resistant. 【90 Degree Positioning Square】The 3D woodworking ruler is equipped with clear graduations in inches and millimeters to measure and position the length more accurately. Suitable for welding wood, metal, right angle and 90 degree corners, etc. 【Easy to Use】This L-shaped connector is easy to use. This unique woodworking tool can be stretched over the inside and outside corners of the workpiece. The 90 degree right angle clamps attach to your bearing with F terminals (not included) or C terminals (not included). 【Widely Used】Designed to be attached to cartons, picture frames, shelves, outside corners, etc., to aid alignment when gluing. 【Satisfaction】NICAVKIT aims to provide all customers with quality products and customer service. If you have any problems, please contact us and our after-sales team will solve your problems as soon as possible.