12", Magnetic Aluminum Reinforced Torpedo Level, Aluminum Reinforced Frame, Rubber Magnetic Working Edge Allows For Hands Free Use On Ferrous Metal Surfaces, V-Groove Frame Fits On Pipe & Conduit, Tapered Ends Assure An Easy Fit Into Tool Belts, Tool Pouches Or Work Pant Pockets, Surround View Vials Reflects Ambient Light For Easy Read, Oversized Frame, 12" Multi-Pitch Vial Reads Slope In 1/8" Increment.