• Made of light aluminium • Accuracy +/- 0.5 mm/m • 0.5 mm/m precision in normal position • 0.75 mm/m in inverted position • Barrel-shaped vials • Vial liquid is resistant to UV light and extreme temperatures • Sensitivity of 10 mm/m • High-visibility • Radius of the vial is 200 mm • Unbreakable vials • 2 lines in each side of flat vial for easier use • 1.4 mm wall thickness aluminium profile • Light profile of aluminium 520 g/m