🚴♂【Comfort riding】Butyl rubber, better air tightness, durability and shock absorption. No bumps will be felt, advanced 20x4 tube adds comfort to your child's riding. Must get this inner tube for spare or fixing flat!
🚴♂【Quality Tested】Every tube passes a strict 100% quality control inspection. Strong wear resistance, not easy to break and deform during use. The inflation port has a protective cover, the gas in the 20 x 4 inner tube is not easy to leak. Thicker than others you have!
🚴♂【Package included】You will get 2 pack fat tire tube 20x4.