The Stabila Series 80U Spirit Level has a rectangular aluminium profile with a powder coating that protects sensitive surfaces. The spirit level is easy to clean due to its smooth surfaces and an electro-static powder coating in anodised colour. The levels are firmly fitted with impact-resistant plastic end caps. The patented STABILA vial system ensures long-lasting accuracy and offers precise measurement even for heavy-duty tasks. Especially for carpenters and cabinet makers, electro installations, tilers, and plumbers. Perfect measuring tool for DIYs. Specification Normal Position Accuracy & plusmn0.5 mm/m. Overhead Position Accuracy & plusmn1.0mm/m. 2 Vials 1 Horizontal and 1 Vertical. Measurement 1 Coated Measuring Surface. Stabila 18796 80U Spirit Level Size 50cm (20in).