I-Beam Level Number of 30 Vials 0 Number of 45 Vials 0 Number of Level Vials 1 Number of Plumb Vials 2 Top Read No Top Read Window Vial Illumination LED Vial Material Acrylic Vial Shape Barrel Number of V-Grooves 0 Magnet Type Not Applicable Number of Magnets 0 Accuracy - Standard 0.075 Frame Material Aluminum Overall Length 48 in Magnetic Nonmagnetic Vial Types Included Level Vials Plumb Vials Color Black Blue Includes LED Light Total Number of Vials 3