[Durable Construction] This 90 degree angle clamp is made of high quality aluminum alloy, solid structure to ensure long service life. Its anodized surface enhances durability, while clear, easy-to-read markings facilitate precise measurements for woodworking projects. [Precision Clamp] This clamp is designed to hold a perfect 90 degree angle, ideal for woodworking, ensuring precise alignment. Whether gluing or applying fasteners, the clamp's gentle grip protects materials from damage, making it a reliable addition to your tool kit. [Multi-purpose Use] This professional-grade tool is suitable for making boxes, picture frames, and cabinets. Its ability to assist in squaring during the gluing process makes it a valuable tool for professional carpenters and DIY enthusiasts. [User-Friendly Design] With its simple structure and sleek appearance, this square ruler meets strict quality control standards and is easy to use, suitable for both novice and experienced craftsmen. Color: Blue/Black/Red Material: Aluminum Alloy Package Contents: 1 x Ruler 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 to appear slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.