PREMIUM QUALITY - Made of high quality alloy, corrosion resistant and durable to use. MULTI PURPOSE - Thick edge can be used as saw guide. The engraved protractor can be used with the saw against the square for transverse or oblique cuts...... PRECISION &amp; DURABILITY - Our square has a solid aluminum body with CNC machined edges for better precision and durability, whatever the job or job site. ADDITIONAL FEATURES - Permanent graduations with easy-to-read digits, continuous notches. Also useful for hobbyists, builders, fabricators, DIYers and artists. WARRANTY - We strive to provide the best products. HOMEWINS 24h online customer service, if you have any questions, please feel free to contact us.100% money back if you are not satisfied. Specification< br/> Condition: 100% Brand New Material: Alloy Color: Black Dimension: 17CM-185*185*260mm 30CM-304*304* 425mm Package Weight: Approx. 224g/535g