Playtrix Spokester Bicycle Noise Maker - Makes Your Bike Sound Like a Motorcycle SOUND LIKE A MOTORCYCLE - Bicycle accessory for kids that adds realistic motorcycle exhaust sound. Snap Spokester on for more NOISE than you know what to do with! EASY TO INSTALL - Spokester is easy to install. Just snap it on by hand and you're ready to ride! No tools are required! BUILT TO LAST - Durable plastic lasts for hundreds of miles. Don't waste your time replacing playing cards and clothespins, or jamming empty plastic bottles in your spokes and damaging your bike. ONE SIZE FITS MOST - If it has circular forks, it'll fit. Spokester works great on BMX bikes, mountain bikes, kids' tricycles, balance bikes, and road bikes. GREAT GIFT IDEA - Makes a great present for boys and girls for birthdays, Christmas, stocking stuffers, or any occasion!