PREMIUM QUALITY - Made of high quality alloy, corrosion resistant and durable to use. MULTI PURPOSE - Thick edge can be used as a saw guide. The engraved protractor can be used with the saw against the square for cross or oblique cuts...... PRECISION DURABILITY - Our square has a solid aluminum body with CNC machined edges for best precision and durability, whatever the job or site. ADDITIONAL FEATURES - Permanent graduations with easy-to-read numbers, continuous notches. Also useful for hobbyists, builders, makers, DIYers and artists. SPECIFICATION Material: alloy Color: black Dimension: 17CM-185*185*260mm 30CM-304*304*425mm Package weight: Approx. 225g 1 Metric square Color: Black