Material: TPU+Nylon cloth+lattice Size: 36*4.0cm in length [Battery]: Use 1 CR2032 button battery, you can use 20-30 hours, take the battery to ship, and replace it freely 1: It is very convenient to use the snap ring. Taking straight into the back of the slap circle, and the back of the crack is patted on the wrist. The circle will roll on the wrist according to the size of your hand. It can be worn on the wrist, ankle, arm, etc., fashionable, beautiful, and generous. Suitable for outdoor sports such as outdoor activities, jogging, bicycles, single -row pulleys, mountain climbing camping. You can tie it to your pants to prevent the trousers from being involved in the bicycle tooth plate. You can also tie it on the wrist, clothes, backpacks, and any part of the bicycle to play a reflective and decorative effect. Increase the safety of activities at night. 1. The highly elastic steel plate in the mezzanine allows the reflector to automatically circulate after encountering any object. 2. The exterior reflector has high reflection, and the light is very dazzling under direct light, increasing the safety of night activities. 3. Design for tight pants. 4. It is easy to carry on the frame. You can also use a wristband. 5. Benevolence in the rear seat pipe can be used for safe reflective bands. [Effect of Papa Circle]: 1: Reflex light can be formed in 300-1000 meters, which can protect the pedestrians or vehicles on the road. 2: You can send them directly as a gift, which will definitely bring them infinite happiness. 3: You can take it on your wrist, ankle, arm, etc., fashionable, beautiful, and generous. Whether you are waving your hands at the concert, or your stretching limbs in the swimming pool, you will attract attention because you have an ultra -stunned popcut.