Compact design for working in tight spaces. Fast and accurate readings of 1/8 In. and 1/4 In. per foot in any position. Optimized top and back side pipe grooves make this the optimal tool for working with both small and large diameter pipes. Weld clearance gap allows leveling between weld lines. Laser etched ruled edge allows for quick, accurate measurements. Amplified Rare Earth Magnets maximize holding power. No. 48-22-5107: Length: 7 In., Material: Aluminum, Magnetic: Yes, Number of Vials: 3, Pkg Qty: 1, Package Type: Card