Save time and frustration using the latest innovation from Gardner Bender; the Self-Cutting Cable tie. Easy to use; simply lock and twist to finish the job, with no need for an additional cutting tool! Unlike other "twist" ties our patented design doesn't require a reduction in the strength and durability of the cable tie material or multiple rotations to achieve a break in the tie. Instead, a small cutting blade designed into the head of each tie ensures a tight lock and quick, clean cut, improving the appearance of the end result and virtually eliminating residual jagged edges which can bite into bare skin. ties are made from durable 6/6 nylon and provide 50 pounds of tensile strength.