ALL IN ONE DESIGN: The upgraded 2 in 1 dog vest harness adds a retractable leash function to the regular harness, eliminating the need to purchase a hand-held traction device or leash as with the regular dog harness. Onedog harness is all you need to get around AUTOMATIC LOCKING: Our escape proof dog harness and leash combo features an automatic lock function, the explosion-proof shock core automatically locks when your pet suddenly accelerates to prevent them from running out of control. Also the dogs harness will automatically lock if the lead is released suddenly to prevent any harm to your pet NO PULL ANTI CHOKE: Anti pull dog harness is designed to adapt to your dog's walking speed and prevent pulling or choking. Pulling pressure is evenly distributed to the body and keeping your dog safe and comfortable. This perfect fit dog harness is very easy to put on and take off with two quick release buckles and it has 4 easily adjustable straps around the body so you can adjust the tightness at the sides of the neck and waist AUTO RETRACTABLE DOG LEAD: Retractable dog leash extends up to 130cm, strong and durable. The dog leads for small dogs allows your pet to run freely while keeping them safely within your reach. When you want to play with your dog, you can slowly release the dog leash and it will slowly retract back into the harness automatically, so you don't have to hold anything else and enjoy a real hands free DURABLE MATERIAL: The no pull dog harness is made of composite waterproof material, double-layer elastic adhesive and sandwich mesh, soft, elastic, and breathable. Sewn with nylon seams to make the fabric more strong and durable. The handle is large enough to grab the soft dog harness quickly and easily lifting your dog in/out of the car