www.pmmag.com/articles/88542-post-and-pipe-level-from-bahco
Post And Pipe Level from BAHCO
February 1, 2004

BAHCO North America offers a new line of premium levels for construction applications, including the 851120 Post and Pipe Level, which uses a folding design to open at any angle. It features built-in click locks every 15 degrees for easy use on posts and pipes. The elastic strap allows hands-free reading of two horizontal and one vertical level vials.
Circle 37