About this item FITS FOR MOST KIDS BIKES - The 20 x 2.125 bike tire are Universally compatible(for example:Coewske, Royalbaby, Schwinn, Joystar, Dynacraft,etc), you can use these tires on various 20 inch kids bikes. HIGH-QUALITY（BPA/LATEX FREE）&FOLDABLE - Distinct and thick tread for rough riding on different types of surfaces. Made of rubber which make it durable for long lasting use.The 20 bike tire are safe and can be folded without damage for easy storage. EASY INSTALLTION: Easy to mount on the rim. We suggest to replace the both two tires of bicycle.Upgrade your kid’s riding experience with high-quality bmx bike tires that have superior shock, dampening capabilities. PACKAGE: bike tires 20 x 2.125*2(foldable)+2 tubes+2 black levers