• Silver anodized, extruded aluminum I-beam frame with shock-absorbing, protective end-caps • Barrel vials fit into precision-stamped cutouts and are held in place by Quick-Change ABS plastic vial covers for easy replacement • Rule screen-printed on one leveling surface, calibrated in 16ths on one edge and centimeters on the other • protective end-caps • Barrel vials fit into precision-stamped cutouts and are held in place by Quick-Change ABS plastic vial covers for easy replacement • Rule screen-printed on one lev eling surface calibrated in 16ths on one edge and cen • 3 Vials: 1 Level/2 Plumb • Lgth In=36