Selling point:<br> 1. Independent circuit design, middle button control: strobe flash-fast flash-always on<br> 2. There is no need to modify or connect the circuit of the car body itself, just install it on the steel wire of the wheel of the car<br> 3. There is no need to flash during the day or when parking. It is super energy-saving and does not waste electricity. When the car moves at night, it can form a bright and complete halo at a lower speed per hour. The color is cool red/blue-seven-color light; this product is switched on control<br> 4. It has safety reflective functions on both sides to prevent collisions with incoming vehicles, greatly improving driving safety, and at the same time have waterproof and energy-saving functions such as moving light in the dark<br> 5. Super bright and dazzling safety reminder for night riding<br> Details<br> Lamp bead model: LED<br> Battery capacity: 1 section 2032 button battery<br> Mode: 3 modes, including fast flashing, slow flashing and long on<br> Waterproof grade: life waterproof<br> material: plastic<br> Installation method: installed on the spokes<br> Product weight: 38G<br> Product size: 12.5X3.8cm