The tough 600mm OX Trade Level features unique highly accurate UV resistant magnified dual Easy View vials which are backed by a lifetime 'Vial Warranty'. The strong but lightweight aluminium profile is fine milled on the base edge for 100% precision. Shock resistant endcaps protect against drops and bumps on site. It has 3 solid acrylic vials with accuracy of .5mm/m or.0005in/in. The vials are UV resistant and milled surface on base up to 1200mm length. Shock absorbing rubber end caps and lifetime vial warranty.