This is one of our favorite leashes. 3/8in. Drag-Free Leash with Internal Coil and Sewn Handle, extends from 3 Ft. to 8 Ft. The coil design allows for the leash to take up its own slack as the dog moves closer to your heel which prevents dragging. Great for jogging. Leash will help prevent tangling if you are walking more than one dog. Coil will not wear out and lose its "spring" like similar products made with Bungee. Hardware is solid brass.