Extremely durable, torsion-resistant aluminum R-profile. Extra-wide measuring surface for exceptional stability, preventing tipping during measurement. Three guiding edges ensure precise marking over the entire profile length. The continuous handrail with finger groove provides excellent grip during measuring and transport. Coated measuring surfaces protect sensitive surfaces. A continuous web over the horizontal level further stabilizes the profile. End caps with slip stoppers ensure a secure fit of the level when marking. Shock-absorbing end caps made from a two-component material mix protect the profile from impacts. Removable end caps allow for precise placement and marking even in corners. The R-profile shape enables easy removal of building materials. Easy to clean. STABILA installation technology ensures long-term precision and measurement accuracy in normal and inverted positions of 0.5 mm. Features: horizontal level, vertical levels, coated measuring surfaces.