ALL-IN-ONE DESIGN: The upgraded 2-in-1 dog harness adds a retractable leash function to the standard harness, eliminating the need to purchase a handheld leash or a separate leash like with the standard dog harness. This harness is all you need to get around. AUTOMATIC LOCKING: Our escape-proof dog harness and leash combination features an automatic locking function. The core explosion-proof lock automatically engages when your pet suddenly accelerates to prevent loss of control. In addition, the dog harness automatically locks if the leash is released suddenly to prevent injury to your pet. NO PULLING, ANTI-CHOKING: The anti-pull harness is designed to adapt to your dog's walking speed and prevent pulling or choking. The pulling force is evenly distributed across the body, ensuring your dog's safety and comfort. This perfectly fitted 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 on the sides of the neck and waist. SELF-RETRACTING DOG LEASH: The retractable dog leash extends up to 130 cm, strong and durable. This leash for small dogs allows your pet to run freely while keeping them safely within reach. When you want to play with your dog, you can slowly release the dog leash and it will automatically retract into the harness, so you don't need to hold anything else and can enjoy true hands-free fun. DURABLE MATERIAL: The no-pull dog harness is made of waterproof composite material, double-layer elastic adhesive, and sandwich mesh, making it soft, elastic, and breathable. Stitched with nylon stitches to make the fabric stronger and more durable. The handle is large enough to quickly and easily grip the soft dog harness and lift your dog in/out of the car.