FeaturesFull metal BACKBONE™ - strong and durable frame SHARPSITE™ vial technology improves vial readability. Wide, durable handles for comfort and portability Milled measuring surface guarantees accuracy in all working positions High-contrast vial construction, easy to clean and optimal readability Impact-resistant, removable end caps protect the frame Excellent anti-slip prevents slipping on the wall or on the measuring surface Durable hanging hole for easy storage Accuracy up to 0.029° (0.0005"/in, 0.5 mm/m) in normal and inverted position Reinforced "rare earth" magnets for maximum holding power Technical dataLength 200 cm Magnetic yes