Rectangular aluminum profile with printed installation dimensions and notches for the gauge transfer of bathroom fittings, installation points can be transferred directly from the profile, align, mark, drill, extra-strong rare earth magnet system for optimal adhesion of the spirit level to metal components, hands-free alignment and adjustment of installation systems, six-ring horizontal bubble for creating 1% and 2% gradients, end caps with non-slip stoppers and a continuous bridge over the horizontal bubble ? ideal for scribing, upper side of profile with metric scale in the middle, easy to clean, plastic end caps protect the profile from impacts, STABILA built-in technology ensures long-term precision, measurement accuracy in normal position ± 0.5 mm, in reverse position ± 0.75 mm, especially Suitable for installation work in the heating and sanitary areas, for example transferring the drill hole markings for washbasin holders and valves