The Beep Beep is all about turning little kids into rad little riders. With a durable steel frame, smooth rolling tires, long seat post and adjustable height handlebars, it's the perfect balance-teaching tool for kids as young as 18 months old. Durable steel frame and finish 12" wheels with lightweight alloy rims Standard tires with inner tubes Ball bearing threaded headset with 130° steering limit Adjustable saddle and handlebar height