The Blackburn 16" x 2.125" Kid's Bike Tire replacement is a durable and reliable option for replacing a worn-out or damaged tire on a kids bike. Made of high-quality rubber and designed for tubular tire type, this black tire is specifically compatible with kids bikes with a wheel size of 16 inches and a width of 2.125 inches. With a brand name of Blackburn, you can trust that this tire is built to last and provide a smooth and safe ride for young cyclists.