I-Beam Level Frame Material Structo-Cast(R) Plastic Length 48 in Nonmagnetic Top Read No Total Number of Vials 3 Number of Plumb Vials 1 Number of Level Vials 3 Number of 30 Degree Vials 0 Number of 45 Degree Vials 1 Lighted Vials No Number of V-Grooves 0 Accuracy +/-0.125 in Vial Type Bubble Vial Material Acrylic Number of Magnets 0 Magnet Type None Color Orange