The Empire Level EM81.12 True Blue 12-inch toolbox level combines a durable aluminum frame with shock-absorbing endplates to help protect it from damage. Its continuous magnetic edge holds firmly to steel studs and other surfaces, while a V-grooved edge helps keep the level in place on pipe or conduit. Accurate to 0.0005 inch in all 10 working positions, it features a top-read window and TRUE BLUE banded vials for clear readings, plus a VARI-PITCH vial for measuring slope or setting a grade.