Compared to other traditional dog harness, this product is a LED dog harness with 3 flashing modes so that it can be illuminated at night, enhancing visibility and safety at night when out for a walk with your pet dog. With help of this LED dog harness, it is easy and convenient for you to control and guide your pet dog, allowing you to enjoy outdoor activities with your pet dog. It is made of high-quality mesh fabric material. There are steady glowing, fast-flashing and slow-flashing 3 different kinds of flashing modes. There are 3 different sizes for you to choose from. Our LED dog harness has a quick-recharge capacity and a battery life of 4-6 hours after fully charged. This product is perfectly suitable for dog, puppy, cat, and other medium animals. Item Name: Dog Harness Material: Mesh Fabric Features: Eye-catching, Easy-wearing, High Brightness Battery Capacity: 180mAh Size Details: Size: S, Neck Circumference: 24cm/9.4", Bust: 34cm-45cm/13.4"-17.7", Back Length: 12cm/4.7" (Approx.) Size: M, Neck Circumference: 31cm/12.2", Bust: 41cm-57cm/16.1"-22.4", Back Length: 12cm/4.7" (Approx.) Size: L, Neck Circumference: 40cm/15.7", Bust: 50cm-68cm/19.7"-26.8", Back Length: 13cm/5.1" (Approx.) Notes: Due to the light and screen setting difference, the item"s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Dog Harness(Traction Rope Not Included) 1 x USB Cable