These VELCRO brand cable ties are hook and loop fasteners that assist with day-to-day fastening needs. This product comes in a pack of 50 total fasteners, half gray and half black. The product measures 8" long and 1/2" wide, and it weighs a total of 0.2 pounds. These reusable cable tie straps are durable and weather proof. These cable ties are easy to use, and no special training is necessary to use them.