Features and Benefits:�True Blue® vials are accurate to within 0.0005 in. per inch in all working positions�High impact acrylic e-Band™ mono vials offer superior durability�High contrast e-Band™ vials highlight the edge of the bubble�VARI-PITCH™ vial reads slope at 10 mm increments per meter of horizontal run of the working material�High-strength magnetic edge for hands-free use on pipe and other materials�V-grooved working edge fits on pipe or conduit�4 vials - plumb, level, 45 degree and VARI-PITCH™�Metric pitch�Made in USA�Limited Lifetime WarrantyThe Empire 12 in. magnetic tool box level is equipped with True Blue® vials, which are accurate to within 0.0005 in. per inch in all 10 plumb and level working positions. The VARI-PITCH™ vial reads slope in 10 mm per meter increments. A powerful, full length, magnetic edge frees hands when working with metal materials. A heavy duty extruded aluminum frame with top read windows gives added durability against drops. A top v-groove working edge makes this ideal for users working around pipes or conduit.