1. Strength Bowstring Serving ThreadMade from 400D/3/020 nylon material, this bowstring serving thread has a breaking strength of 34 lbs. It is incredibly strong and for securely strapping peepers and nocks. 2. Ideal for Various ApplicationsThis serving thread is ideal for attaching whiskers to bowstrings, providing durability compared to other types of service lines. It can also be used for kite strings, shoemaker's strings, and other DIY projects, making it a versatile material. 3. and ReliableWith a thickness of 02 inches (approximately 1mm), this bowstring serving thread is designed to be and reliable. It can withstand repeated use and provide longlasting performance. 4. Generous LengthEach roll of bowstring serving thread comes with approximately 131 yards (about 120m) of material, providing enough for multiple applications or projects.