Classic tubular level 120cm magnetic. magnified central bubble for greater visibility, duration and precision +/-0.5mm/m. wider machined base (26mm) and magnetic. large tubular bubbles. light body with rough surface easy to clean. rubberized edges to support more resistant in case of knocks. more ergonomic. rounded cables. new part frame design. easy reading. large tubular bubbles on the sides. accuracy: 0.5mm/m. central magnified bubble. easy to clean after use. stanley