Lightweight, non-slip aluminum ruler that prevents it from moving when cutting or drawing lines. Ideal for cutters. The laser-engraved scale makes it very durable. It has an integrated magnet on the back, allowing it to grip metal surfaces. Its design makes it easy to access. 30 cm ruler. Material: aluminum + elastomer + neodymium magnet. Size: 30.5 x 3 x 0.4 cm. Color: black.