ITEM NAME:Metric Inch 90 Degree 45 Degree Square Triangle Ruler Measurement Tools A#S Product Description Description: Features: The quick square also known as a layout or angle square is designed to provide carpenters with a quick and accurate way to mark out for many building projects and widely used when constructing roof rafters. The quick square is manufactured from metal and has graduations marked with degree measurements and inches, which helps to simplify material layout and timber cutting. Specifications: Material: metal Length: 7" Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color which is showed on the pictures. Thank you! 2. Please forgive 1 cm/0.39"-3 cm/1.18" measuring deviation due to manual measurement. 3. Very.Included: 1 X Triangle Ruler. The quick square also known as a layout or angle square is designed to provide carpenters with a quick and accurate way to mark out for many building projects and widely used when constructing roof rafters.