1. Strong and Durable Made of 400D nylon with a breaking strength of 34 lbs, this bowstring serving thread is very strong and suitable for strapping peepers, nocks, and attaching whiskers to bowstrings. It is more durable compared to other types of service lines. 2. Versatile DIY Material This bowstring serving thread is not only ideal for bowstrings, but also suitable for kite strings, shoemaker's strings, and more. Its versatility allows for various uses in DIY projects. 3. Sturdy Construction With a thickness of 0.2 inches (approximately 1mm), this bowstring serving thread provides a sturdy and reliable option for bowstring protection. It can withstand rigorous use and maintain its integrity. 4. Ample Length The package includes 131 yards (approximately 120m) of bowstring serving thread, giving you enough material for multiple projects or replacements. The generous length makes it convenient for various applications.