Craftsman 2-beam Self-Leveling Laser Level 9-48250 100 ft. Plus laser projection. Exceeds an accuracy rating of +/-1/4 in. at 30 ft. Comes with a precision leveling base, laser enhancing glasses & a soft protective case. Change laser beam mode with integrated sound mechanism alerting user when out of level Ribbed housing with rubber over-molds, Craftsman Warranty.