Check the listing for details. S-LON FIRE Beading Thread, Black 50-Yard Spool. Condition: New. Listed at 7.96 USD. Color: Black Diameter: 0.006" (0.15mm) Length: 50 Yards (150ft) 45.7m Strength: 6lb (2.72kg) S-LON FIRE: This is a pre-waxed, braided bead thread consisting of gel-spun polyethylene, known as the strongest fiber, per diameter, ever created. It has an unbelievably high tensile strength and is recommended for various bead weaving and jewelry-making projects. DETAILS: S-Lon Fire is 6lb. test and comes in a crystal-clear color. The cord measures .006” (.15mm) in diameter. The 50 yards are wound on a spool secured with a clear plastic clip. Keep your thread secure and organized. EASY FINISH: Slon Fire is made of super strong material, so we recommend using sharp, precise scissors to cut the string. However, the thread can also be burned instead of snipping. A thread burner is easier to use. This method seals the ends, which prevents frayed edges or split ends. VERSATILE: Originally used by fishermen as a high-quality fishing line, this thread took off in the jewelry-making world. It can be threaded on a needle and used for stringing or bead weaving. The thread does not stretch or tangle, the strength of the cord is essential when working with heavier beads and findings.