These box spirit levels from STABILA possess three vials (one horizontal, two vertical) for measuring at any angle. The product is manufactured from lightweight yet robust aluminium and has a protective electrostatic powder coated. All products have an accuracy of horizontal 0.029 (0.5mm/m) and vertical 0.048 (0.75mm/m). Also boasts plastic end caps and a protective measuring surface.Features and Benefits Body is manufactured from aluminium for a lightweight yet durable construction Possesses two vertical vials that allow the user to perform quick readings in any position Measuring surface has a protective surface to protect both the product and delicate work surfaces Electrostatic powder coating and smooth design allows for an easy tool clean Plastic end caps protect the profile against impact making the product ideal for use in punishing environments STABILA installation technology ensures long-term accuracy no matter how many times you use it - measuring accuracy in the normal posit