Features 1、HIGH ACCURACY: The versatile ruler leveling tool features a dual layer design that keeps your project rectangular and levels, providing you with accurate, high accuracy results for architectural drafting design, woodworking and more. 2、CLEAR SCALE: The angle ruler comes with clear and precise imperial and metric scales on the front and side, making it easy and quick to read or marks when using. 3、EASY TO MOVE: The large center hole is designed to fit your fingers to hold the ruler in place or secure it to the workpiece, making it easy and comfortable to place, handle or move without damaging the fragile cutting edges. 4、APPLICATIONS: 45/90 degree aluminum alloy angle ruler is used to clamp boxes, picture frames, etc. to assist in the rectangular making process; a must have tool for woodworking enthusiasts, home builders, carpenters, engineers and hobbyists. 5、ALUMINUM ALLOY: The woodworker's triangle ruler is made of sturdy aluminum alloy with oxidized treatment, durable, twisting resistant, practical, rust and corrosivity resistant. Specification Item Type: 45 Degree Angle Ruler Material: Aluminum Alloy Package List 1 x 45 Degree Angle Ruler