Save time and frustration using the latest innovation from Ancor - the Self-Cutting Cable Tie. Simply lock and twist to finish the job, with no need for additional tools! The integrated stainless-steel blade leaves a clean, flush cut which improves appearance and eliminates the sharp tail, all while maintaining a tensile strength above industry standards. Made of sturdy nylon 6/6 material. UV-resistant. 50-lb. tensile strength. 20 per package.