WaterproofHigh-quality ABS plastic is durable, light-transmitting and lightweight.The bicycle tire valve lamp is specially designed with waterproof function to make your travel smoother. Don't worry about rainy weather , but In order to make the life of the bicycle tire valve lamp longer, please do not soak it for a long time.SafetyFlashing tire wheel valve cap light can increase your safety, it can make you more recognizable in the dark, in bad weather, can give you greater visibility, greater safety.Easy to installBicycle tire valve lamp is easy to install, without any tools, Just simple screw them on to your tire valve and press the button as you need, Easily finish to install and remove.DurableL,These LED bike wheel lights will emit a fascinating aura with the vibration of the tires,with a warning function light ,reducing accidents,Perfect for night cycling.Wide applicationsThese LED bicycle wheel lights use 2 in 1 interface design, They are suitable for many types of bicycle and motorcycle with an American valve,each tire valve light is equipped with three AG10 batteries, low power consumption and long service life.