Product Description The Stanley 9-Inch Cast Aluminum Torpedo Level contains 3 vials for easy readability and maximum versatility. The level's frame is made from durable, heavy-duty cast aluminum for construction grade durability, and the vials are replaceable in seconds to ensure non-stop job site usability. Ideal for pipe and conduit work, the featured magnetic strip allows for hands-free operation on metal surfaces. Additionally, the level comes with a manufacturer's limited lifetime warranty. From the Manufacturer The Stanley 9-Inch Cast Aluminum Torpedo Level contains 3 vials for easy readability and maximum versatility. The level's frame is made from durable, heavy-duty cast aluminum for construction grade durability, and the vials are replaceable in seconds to ensure non-stop job site usability. Ideal for pipe and conduit work, the featured magnetic strip allows for hands-free operation on metal surfaces. Additionally, the level comes with a manufacturer's limited lifetime warranty.