Revolutionary R-type box profile, removable shock absorbing endcaps with patented Stabila anti-slip stoppers and two full length powder coated measuring surfaces, two vertical vials and one horizontal vial. Key features: • Five chamber R profile with torsional rigidity • Extra wide measuring surface (4cm) so that level does not tip over during measuring • Three guided marking edges for marking or cutting over full profile length • Hand profile with finger groove over full length • Measuring accuracy 0.5mm/m in normal and inverted position