Milwaukee REDSTICK box levels provide best-in-class vial readability and frame durability. The ALL-METAL BACKBONE provides strong, durable frame to ensure long-life accuracy. SHARPSITE Vial Technology provides superior readability with a magnified bubble and high-visibility vial spirit. Amplified Rare Earth Magnets maximize holding power. No. MLBX24: Length: 24 In., Material: Aluminum, Magnetic: No, Number Of Vials: 3, Pkg Qty: 1 No. MLBX48: Length: 48 In., Material: Aluminum, Magnetic: No, Number Of Vials: 3, Pkg Qty: 1 No. MLBX59: Length: 59 In., Material: Aluminum, Magnetic: No, Number Of Vials: 3, Pkg Qty: 1 No. MLBX96: Length: 96 In., Material: Aluminum, Magnetic: No, Number Of Vials: 3, Pkg Qty: 1