1. Rechargeable LED Light with Type C USB:The 5-meter range rechargeable LED light which allows you to walk your pet safely at night. As well as makes it easy to pick up the drops when it’s dark around. 2. Wearable Design:The revolutionary DONUT-shape design allows you to free your hands while walking dogs. 3. Easy to Control:With the press of one button, you can easily lock the leash at certain length that suits your need. Once unlock, the leash will retract itself back to the “DONUT”. 4. Length and Strength:16 ft. (5 meter) traction rope, perfect for large and medium breed dogs up to 52lbs (20kg). 5. Durable & 360° Tangle Free: Made of environmentally friendly and durable ABS plastic, and adopts advanced assembly and bonding technology which can effectively prevent the impact cracking caused by accidental falling. The strong Nylon traction rope and chromed metal lock is designed to be “360° Tangle Free” which can be retracted smoothly at any angle and allows your pet to move freely.