Features: 1.The length is adjustable. This retractable dog leash is about 5m / 16.4ft very sturdy and reliable, and it can retract easily and smoothly. The puppy belt brake system automatically adjusts the belt to the required length. Provide enough space for your pet to enjoy unrestrained. 2.Strong and sturdy. The durable nylon tape is firm and can control medium?sized dogs and large dog breeds. Durable and can withstand daily use. The sturdy ABS plastic shell prevents impact cracking caused by accidental drops. 3.Ergonomically designed handle. It can reduce hand pressure even when walking for a long time. Excellent comfort and anti?slip performance make you feel more comfortable. 4.With lighting design and safe color changing flash design, you can walk your dog safely even at night. 5.The free and convenient braking system and hands-free function allow you and your pet to walk freely. Specification: Item Type: Dog Automatic Traction Rope Material: ABS + Nylon Product Size: Approx. 20 x 10.5 x 7.5cm / 7.9 x 4.1 x 3in Battery Model: AAA Battery x 2 (Not Delivered) Instructions: 1. Rotate clockwise to the direction of the light, take out the cover, and install 2 AAA batteries. PackageList: 1 x Dog Traction Rope