Features: Specially designed for the vocational rider or casual cyclist Simple to use, long lasting, and safety attached Easy mount and release , installed in seconds before you get ready to ride Be seen while riding your bicycle, this LED light is the perfect solution for night-time safety when biking. Secure, remains securely locked in position, even during off-road use Durable and water resistant Silica gel blades, better flexibility, abrasion resistance LED strips easy heat dissipation and long service life Suitable for mountain bike, road bike, folding bike,etc The product is consist of 14 pcs colorful LEDs It can flash 30 different kinds of patterns, patterns will be changed every 4 seconds Pattern is clear and completely when speed up to 20kms/hour Equipped with light sensor and movement sensor, flash only at action, it will not work and save power when not riding Specifications: Battery: 1 x AAA ( not include) Could be maximed to 12 hours when it work Modes: slow, quick, steady Color:Blue Size:67x95x13 mm Package Include: 1 * Bicycle Spoke Light