1.Simple, practical and comfortable. A ergonomic and anti-slip rubberized handle fits in your hand well for those long walks. 2.8m tape leash with easy-adjust retraction that allows your canine pal to explore but still remain within safe distance. Tangle-free 360 degree tape movement. 3.Professional strap ---extremely sturdy 8m strap---for medium and large dogs up to 110lbs. 4.You can push the button all the way down to lock the leash, or click the button back to easily reel your dog back in. It will remains locked as long as the button is pressed. For safety reasons, the lock is locked when the belt is tensioned; when you need to unlock, pull the dog back, or push the dog leash forward. 5.Note:1.Do not let your dog chewing the leash, a 5 pound dog can easily pull off the leash if it has a little breakage.2.Don't pull the rope to the end, it is easy to damage the spring, so it won't retractable. Stop it in time.