Set includes 600mm, 1200mm, 1800mm & carry bag. 200mm radius barrel-shaped vial with special resistant vial liquid to UV light and extreme temperatures. • 0.5 mm/m precision in normal position • 0.75 mm/m in inverted position • High-visibility and sensitivity of 10 mm/m • 2 lines in each side of flat vial for easier use • Levels made of light aluminium (light profile of aluminium 520 g/m) • 1.4 mm wall thickness aluminium profile • Level bag - made from 420D polyester