4 Pack, 15", Black, Cable Release Tie, Releaseable, Reuseable, Nylon, Ultra Violet Resistant, Temporarily Fastens Wires, Cables & Hoses, Extended Releasable Tab In The Head Makes For Easy Release & Reusability, Ideal For Temporary Use Or Where Frequent Servicing Is Required, Ultraviolet Black Ties Resist Harmful Light Rays, Primarily For Outdoor Use.