Box Level Number of 30 Vials 0 Number of 45 Vials 0 Number of Level Vials 1 Number of Plumb Vials 2 Top Read Top Read Window Vial Illumination None Vial Material Acrylic Vial Shape Block Features SurroundView(R) Vials Reflect Ambient Light For easy-Read Screwed on hand grips stay on tool Solid Block Acrylic Vials won t fog leak or break Protective End-Caps Number of V-Grooves 0 Magnet Type Not Applicable Number of Magnets 0 Accuracy - Standard +/-0.012 in