The Walky Dog Plus is the new and improved version of the WalkyDog. It has upgraded paracord leash, lightweight stainless steel bar, and quick disconnect. The spring tension and leash length can both be adjusted. The leash can be replaced with a longer leash with ease. There is one cap holding the spring/leash assembly into place. Once the cap is off just take the loop off the snap and the springs come off the leash. Make sure to keep the spring with the narrow end on the side with the knot.