I have three very large golden retrievers. Their favorite word is "walk." It is really difficult to walk all three at the same time. I cannot walk with two leashes in one hand, so I thought that I would try this hands-free dog leash. This is a really nice leash and it came with an added bonus of 15 bags and bag dispenser. I like the black and blue colors of this leash and it is really well made. When it is fully extended, it is 63." My dogs are very large dogs and when they pull, it's almost too much to handle. This leash is padded and helps with pulling. It is fully adjustable and very easy to adjust. It has a nice bungee for shock absorption and it claims to absorb shock for dogs up to 150 pounds. My biggest one is 100 pounds and it works very nicely with her! She's usually the one that I have to drag along because she's so far behind, but my middle dog is a puller and it works for him too. This also includes reflective stitching which is perfect for late night walking. This leash is great for my three large golden retrievers. It makes walking/running with them a lot easier.