[Durable Material]: The positioning square is made of premium ABS plastic material, lightweight, wear resistant, sturdy and durable to use. [90 Degree Corner Clamp]: The right angle clamps help to create the precise 90° angled woodwork quickly and conveniently, is a practical woodworking tool. [Wide Applications]: The clamping square is suitable for making cabinets, picture frames, drawers, shelves, boxes and other square woodwork. [Easy to Use]: The corner clamp is easy and flexible to use, quick positioning, and easy disassembly and assembly, making woodworking projects easier. [Package Including]: You will get 1 positioning square and 2 clamps. Specification: Product Size: Ruler: (Optional) 3inch: 5cmx8cm or 1.97inchx3.15inch 4inch: 10cmx10cm or 3.94inchx3.94inch 6inch: 15cmx15cm or 5.91inchx5.91inch 8inch: 20cmx20cm or 7.87inchx7.87inch Total length of Clamp: 10.5cm or 4.13inch Material: ABS plastic Package Includes: 1 Positioning Square 2 Clamps Note: Please allow slightly errors due to manual measurement and different monitors. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.