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 ADI710-41 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.