Stanley Tools PRO-180 I-Beam Level has a durable, I-beam girder section aluminium body for strength and long life.
All levels feature 1 x top read horizontal vial, 1 x 180° rotating angle vial (double graduation for 0° up to 90° and in 10° increments), plus levels above 40cm include 1 x plumb vial. The horizontal vial can be viewed from both sides and above for ease of use.