Designed for strength, durability and reliability. Ideal for all bundling and organizing tasks from the workshop to the office and from the laundry room to the kitchen. Made from durable nylon. Bent tip ensures easy insertion into the tie head. Easy "slip" during pull-thru due to smooth radiused edges. Finger grips on end provides secure grip to tighten. Close serrations along it's length promote precise adjustment when tightening.