All DURACHOC 250.2/250.3 models are made of aluminum alloy. The rectangular-shaped aluminum tube is curved, eloxic and therefore resistant to shocks, scratches and suitable for use. U-shaped surfaces guarantee practical use of these levels. Both edges are equipped with plastic covers. These levels have horizontal and vertical bubble vials made of plexiglass and glass. This standard DURACHOC model is especially used in carpentry, for high and low construction.