Adjustable Drag-Free Leash with Internal Coil and Quick Release Handle w/ Satin-Metal Hardware. The coil design allows for the leash to take up its own slack as the dog moves closer to your heel. 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. These Drag-Free leads will extend to 8 feet and made using 1/2'' tubular webbing.