Python Safety's D-Ring Cord is extremely durable, and reusable. The D-Ring easily cinches to tools weighing up to 5 lbs. Simply pass the loop end of a D-Ring Cord through a pre-drilled hole or closed handle to create an instant attachment point. Price is for a pack of 10. This item works well with other drop prevention items from Python Safety such as: D-Ring Attachment Points, D-Ring Attachment Points Large, Hook2Loop Bungee Tether, Clip2Loop Coil Tether, Utility Pouch, and Pullaway Wristband.