The 12 Inch Polystyrene Angle Square (with Level Vial) by Mayes is a multi-purpose tool for measuring, cutting and leveling. It quickly finds angles and pitches, squares up lumber, and includes a high visibility vial to check for level. With a high impact composite polymer frame, it is tough but lightweight. Permanently impressed scales will never fade (and are accurate to 0.001 inch).

Multi-purpose Tool for Measuring, Cutting and Leveling
High Impact Plastic Frame Includes Level Vial
Embossed Scales Will Not Fade (Accurate to 0.001 Inch)
Includes Instruction Booklet
Made in the USA