Features: Laser Etched In 12 IN Increments To Provide Instant Conduit Length; Unique Finish Is Non-Oily And Resists Rust; Industry's Straightest Wire; Stiffer For Long Runs; Highest Grade Carbon Steel; Tensile Strength 1,600 LB; Multiple Options In Width, Length And Eyelet For Ease Of Use; Case Diameter: 12 IN; Replacement Tape: 31-036