The stainless steel wheel lights are compact design and lightweight high intensity light to increase visibility at night for safety. The lights make impressive effects which vary with wheel speed -- all the way up to full motion circle. The light is perfect for car motorcycle and bike at night. - Flash Wheel Light for car motorcycle bike - On Off switch included and 7 difficult effects - Compact design and lightweight High intensity light increases visibility at night for safety - Makes impressive effects which vary with wheel speed -- all the way up to full motion circle - 6*LR1130 batteries included (replaceable)