POWERFUL MAGNET STRENGTH: The 4 Strong Neodymium Magnets are up to 30x stronger than standard magnets DURABLE MATERIAL: Solid billet aluminum construction makes this torpedo 3X stronger for Lifetime Durability MULTIPLE VIALS: 4 Leveling Vials, including 30 degrees (great for Conduit Bends) PATENTED FEATURE: Brightview Vial Surrounds provide improved visibility, even in low light COMPACT DESIGN: 9-inch size for easy portability and storage