The Bosch GLL 3-15 Self-Leveling Laser in Blue is a portable and compact tool designed for precise measuring and layout tasks. This laser measuring tool features a magnetic base for easy attachment to metal surfaces, a self-leveling function for accurate results, and a durable plastic composite construction. With a lightweight design of 1 lb and a battery included, this Bosch laser level is convenient to use in a variety of home and workshop applications