I-Beam Level,Aluminum,48 in.
0005 in/in, Frame Material Aluminum, Overall Height 1 1/4 in, Overall Length 48 in, Overall Width 2 3/4 in, Magnetic Nonmagnetic.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 Top Read Window, Vial Illumination None, Vial Material Acrylic, Vial Shape Block, Features Center Vial, Shock Resistant, Matte Finish, Number of V-Grooves 0, Magnet Type Not Applicable, Number of Magnets 0, Accuracy - Standard 0.