The listing, Neon Bike Wheel Lights/NIP/ Free Shipping has ended.
I bought these for my husband's motorcycle, but he didn't think that they were as funny as I did. They are new, made for bikes and motorcycles. Neon green, they are off when the vehicles stops, on when running, flash at night according to the packages. They operate on small button-type batteries that are usually available at the dollar store. Two sets, keep the kids safe at dusk. Free US shipping.