Pricing mentioned is for EA. Requires a minimum buy of 1 piece. Aluminum Levels, 540 Series, 48 inch, 3 Vials; Hazmat=False; Features=Advanced frame design assures accuracy;Beveled endcaps protect vials from shock;Top read window;Top read window; StandardPack=1EA; CountryOfOrigin=US; Base Type=Flat; Body Material=Aluminum; Length=48 in; Structure=I-Beam; Vial Positions=1 Level, 2 Plumb;