Johnson Level & Tool 9824-HH 24-Inch Contractor Aluminum Box Beam Level
Extruded aluminum box beam profile. Yellow powder coat finish. Precision machined leveling edges. Solid machined acrylic vials with permanent interior vial markings. Shock-protecting end caps.  A top-of-the line "European design" box beam level for any level and plumb applications.  The most durable of all aluminum levels.  Highly accurate and sensitive.