Extremely durable, torsion-resistant aluminum R-profile. Extra wide measuring surface for extreme stability, preventing tipping during measurement. Three guiding marking edges allow for precise marking across the entire profile height. The continuous handle with finger groove provides excellent grip during measuring and transport. Coated measuring surfaces protect sensitive surfaces. A continuous band above the horizontal bubble further stabilizes the profile. End caps with slip stoppers ensure a secure hold of the level during marking. Shock-absorbing end caps made from a two-component material mix protect the profile from impacts. Removable end caps allow for precise positioning and marking even in corners. The R-profile shape facilitates easy removal of building materials. It is easy to clean. Stabila mounting technology ensures long-term precision with a measurement accuracy of ± 0.5 mm/m in normal and over-position. The equipment includes 1 horizontal bubble, 2 vertical bubbles, and 2 coated measuring surfaces.