Extremely robust die-cast aluminum profile, particularly practical, the horizontal vial can be read from 4 sides, the vertical vials from 3 sides, two vertical vials for quick reading in any position, large grip openings for optimal and comfortable handling, with two precisely milled Measuring surfaces, no discoloration on surfaces, e.g. on exposed masonry, continuous bar over horizontal spirit level also stabilizes the profile, easy cleaning, dirt can be removed again thanks to the electrostatic powder coating, high-precision measurement in all positions, STABILA built-in technology ensures long-term precision, measurement accuracy in Normal and reverse position ± 0.5 mmm, particularly suitable for craftsmen who expose the tool to high stress and need to measure in all positions, for example during bricklaying work and in reinforced concrete construction