Impact-resistant spirit level in yellow polystyrene plastic that will withstand temperatures between -15° C and +60° C. Unbreakable block vials with extremely high transparency and durability. Horizontal magnifying vial with luminous reflector. Easy clean surface. Sensitivity of 10 mm/m with a ± 1.0 mm/m tolerance in the normal position. The vial fluid is a low viscosity, coloured oil mixture that gives the bubble the best possible conditions for movement and is resistant to UV light and temperature fluctuations. The bubble is not affected by static electricity as the fluid is anti-static.Lenght: 60cm (24 in)2 vial