ACCURATE MEASUREMENT: The OX Spirit Trade Level contains 3 solid acrylic UV resistant vials with an accuracy of 0.5mm/m or .0005in/in, ensuring an error-free measurement. OX TRADE LEVELS BASE: The OX Spirit Trade Level features a milled surface base that makes levelling tasks easy. SHOCK RESISTANT RUBBER END CAPS: The OX Spirit Trade Level tool comes with shock-absorbing rubber end-caps which safeguards the tool at the worksite. ALUMINIUM CONSTRUCTION: The OX Spirit Trade Level is made of lightweight aluminum alloy for enhanced durability. QUALITY YOU CAN RELY UPON: Engineered with top-notch materials and tested for optimum performance, our tools are sure to make the work on the site convenient, smooth and quick.