LED Bicycle Spoke Light USB Rechargeable Bicycle Wheel Light Spoke Specification Easy to install, does not affect the centre of gravity of the bicycle, more than 95% of bicycles can be used universally, such as road bikes, mountain bikes, BMX, bikes and even children's bikes. Suitable hub diameter: 19 mm ~ 30 mm. No speed requirement, the lights are equally nice, even when the bike is stopped. You can choose the flashing or continuous operation via the switch, practical and stylish, ideal for outdoor cycling, also a great gift for your friends and family. RECHARGEABLE & WATERPROOF: Our bicycle wheel lights support up to 12 hours of illumination. However, full charge of the battery takes only about 3 hours. And it is IPX5 waterproof, you don't have to worry about driving through puddles or getting caught in the rain. High brightness, low power consumption and energy saving. Both sides are bright, beautiful lighting, novel style, absolutely eye-catching. Spoke lights for bicycle wheels protect you in low light conditions and ensure the safety of night cycling. COOL BIKE LIGHTS: This bike wheel decoration light is a cool gift for kids and adults. It is also an indispensable bicycle accessory to ensure safety when cycling at night. Package Includes: 1 x bicycle lights Imported The More You Buy, the Better the Deal Christmaschristmas Decorations Before Christmaschristmas Decorations Clearancethe Before Christmasholidaynightmare Before Christmas Popchristmas Clearance To Better Fit You,please Do Measure the Size and Compare to the Size Chart Before Placing Order. AFTER SALE SERVICE: 30 Days after sales service and exchange, reply you within 24 hours to solve your problem.