Lightweight and compact, ideal for general applications and working in confined spaces. Glow-in-the-dark vial frames for convenient use in dark areas; 3 tubular vials for 180 degrees, 45 degrees, and 90 degrees. Features a V-notched edge for level alignment on a pipe. Uses three strong rare earth magnets; accuracy: 1.0 mm/m. The spirit level has a sturdy cast aluminum profile with a bubble level that can be easily seen from above.