2 Units: CM and Inch<br/>Made of aluminum alloy material, anti-fall,durable.<br/>Laser-calibration, high accuracy, clear reading.<br/>Can be freely deformed and used in various ways.<br/>Can be used for ceramic tiles, glass, marble, wooden boards.<br/>This product is mainly used for tile opening and positioning, which is very suitable for laying tile work.<br/>Material: aluminum alloy<br/>Color: black<br/>Per ruler size: 12cm<br/>Weight: 370g<br/>Package includes:1 x Twelve Folding Ruler