Features: - 64pcs colorful LEDs, 30 different patterns double-side display, pattern changed every 4 seconds. - Low speed required. Only 15km/h normal riding speed you can enjoy with the patterns.Don't need to rid really fast to make the patterns clearly and completely. - Super bright LED bicycle wheel light, with red, green, blue and white four colors, the effect will be more bright and attractive. - IPX5 waterproof rate, no worry about riding in rainy days. - 30 differnet patterns double side display,patterns changes every 4 seconds. Specifications: Material: ABS Waterproof: IPX5 Product Size: 420*30*31mm Lamp bead quantity: 64 LEDs Battery: 3pcs AAA battery (not included) Runtime: continuous 25 hours+ Applicable Bike: 24 inches and above Package included: 1 * Bicycle Wheel Light 3 * Screw 1 * Rubber strap 1 * Mounting bracket 1 * battery cover 1 * Rubber pad 4 * Cable tie Notes: 1. Manual measuring, please allow 1 ~ 3mm error, thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.