Product Description Both professionals and homeowners place their trust in Empire levels. On the job for a major construction project or around the house for simple hangings, the em81 torpedo series works wonders. At up to 0.0005 inches of accuracy, three leveling angles, and high contrast surroundings, youll almost always be able to see that bubble and know its in the right spot. Visibility is easier than ever before with the intuitive slot built into the top. This lets you view these levels from as many angles as possible, meaning you dont have to be physically holding it to get your measurement. The onboard magnets help even more with this convenience. They work in tandem with the v-grooves that allow them to slide onto and maintain a grip on your piping. With all of these features, along with a sturdy aluminum build, you can bet it was made in the USA. You can also bet that if the levels right, youre working with Empire. From the Manufacturer Empire True Blue 9" Heavy-duty Magnetic Aluminum Torpedo Level OVERHEAD VIEWING SLOT built into the top of this level lets you see what youre doing even when looking from above MAGNETIC EDGE lets you mount this on metal or on piping, keeping it hands-free if you need to work with other tools PIPE GROOVE built into the edges allow you to slide this neatly underneath or on top of piping so you can get more accurate measurements HIGH CONTRAST VIAL SURROUNDING: Bright white circles surround the leveling vials. This helps you see the liquid on most surfaces READS: Plumb, level, and 45 degrees