This is a top-quality level. Made from durable aluminum, it's made to withstand the most rugged terrains and jobsites. Painted in an eye-catching orange powder-finish, the level is easy to spot for quick access. weighing a mere 1/2 lb, it's easy to use and transport with just one hand. For your convenience, the grade rod level has an adjustable vial with a 40 minute sensitivity. Compatible with conventional leveling, track lights, and even robotic instruments, use the level to set your grade rod. This adjustable level is able to be mounted on both square and round grade rods that range from 1"-1.5" in diameter.