Main unit dimensions (2.7 x 0.8 x 1.7 inches (68 x 21 x 42 mm)), compact size magnetic level. 30 Year Warranty with SOLA Focus Lens (+60%) The measuring surface has a V-groove specification, making it convenient for measuring on curved pipes. Compact, lightweight and handy. Cover model with steel clip for convenient belt attachment. It is securely attached to the holder to prevent it from falling out.