Ride your bicycles in style with various patterns of LED on your bike's spokes. Increase visibility at night and ride safely. Sturdy and hard clipping which can support any rough terrain without falling of at all. Unnoticeably lightweight in order to keep your riding balance. The item is easy to install on any bicycle wheel within 10 seconds. For more information, watch the installation instruction video at the bottom of this page.This item is suitable for all ages including children. This item is not sold in stores.