Stabila developed the R-Type Levels 'for life' in the toughest building site conditions. These levels are extremely robust. The body of each level is a length of innovative five-chamber aluminium R-profile with torsion rigidity. They have an extra wide measuring surface (40mm), making them extremely stable and ensuring that they do not tip over during measuring. The R-shape of the profile provides a comfortable grip, acting as a finger groove over the full length. This allows perfect handling during measuring and transport. Three clearly guided marking edges, along with a web over the horizontal vial, allow marking or cutting over the full profile length. In addition, the levels have removable and shock-resistant end caps with patented Stabila non-slip stoppers. Accuracy: 0.5mm/m = 0.029°.