Features: This magnetic, I-beam level is constructed of extruded aluminum with acrylic barrel vials. The 24-inch L level features a full-length, strong-holding magnetic strip, along with 2 plumb vials and 1 level vial. Frame Material / Aluminum Length / 24 in Magnetic/Nonmagnetic / Magnetic Top Read / No Total Number of Vials / 3 Number of Plumb Vials / 2 Number of Level Vials / 1 Number of 30 Degree Vials / 0 Number of 45 Degree Vials / 0 Lighted Vials / No Number of V-Grooves / 0 Accuracy / 0.001 Vial Type / Barrel Vial Material / Acrylic Number of Magnets / 1 Magnet Type / Strip Color / Blue/Black