Bosch GLL55 50ft Cross Line Laser Level Self-Leveling with VisiMax Technology, L-Bracket Adjustable Mount and Hard Carrying Case, 4.4 x 2.2 x 4.2 inches - Amazon.com
Bosch 100 ft. Green Laser Level Self Leveling with VisiMax Technology, Adjustable L-Bracket Mount and Hard Carrying Case GLL100-40G - The Home Depot
Amazon.com: Bosch GLL1P 65ft Combination Point and Line Laser Level for Horizontal, Vertical or Angular Leveling Applications, Black : Tools & Home Improvement