This bicycle wheel light monitor system is an intelligent equipment specially designed for cyclists which is installed onto the bike hub easily and able to display any imaginable images, cartoons, words so cyclists can express their own personality and creativity in a rather dull riding. It works perfectly on 26" bikes or above. A programmable bicycle light that turns your bicycle wheel into a colorful screen. Fun with this product! Specifications: Material: ABS + PC LED quantity: 64 LED light color: RGB Full colors Resolution: 208 * 208 pixels Battery capacity: 950mAh Battery working time: 8-10h Charging method: USB charging Waterproof level: IP55 Product Size: 50 * 3 * 2 cm / 19.7 * 1.2 * 0.8 in Product Weight: 260 g / 9.2 oz Package size: 26 * 15.5 * 7.5cm / 10.2 * 6.1 * 3.0in Package weight: 450 g / 15.9 oz Package List: 2 * Light 1 * Magnet Head 2 * Bolts 1 * Lithium Battery with USB Port 1 * Charging Cable 2 * Zip Ties 2 * Fixed Pads