Stabila 96-M-2 Double Plumb Magnetic Levels made with a light metal rectangular profile with removable end caps 2 vertical and 1 horizontal vial. With rare earth magnet system. Measurement accuracy In normal position 0.029° = 0.5 mmm. Overhead measurement 0.043deg = 0.75mmm. Extra strong light metal rectangular profile with ridges for gripping and removable bi-material end caps. These end caps provide increased damping and when removed a cleaner marking line right into the corner. Note Levels 150cm 60inches and over have painted yellow faces to conform with the level of accuracy required in the Stabila range.