Use the Empire® level 18 in I-beam magnetic level with 45 deg vial to check plumb and level readings on almost any surface quickly and accurately. This level features durable acrylic vials, including a 45 deg vial that lets you easily read offset angles. The Empire® level 18 in magnetic aluminum level features a durable all-metal frame and impact-resistant end caps that protect the vials and frame from damage. It works well with pipes and conduit with the help of a V-groove, which keeps it stable. It also has a magnetic edge that lets you use the level hands free when working with pipes. For clear overhead visibility of readings, there is a top read window. The Empire® level box beam level has a built-in hang hole as well for storage.