2 inner tubes for boy / girl bike 16" x 1.75 - 2.125 American valve

✅ Inner tubes 16 X 1.75 / 1.90 / 2.125 (2 PIECES)
✅ Schrader valve (American)
✅ The inner tubes are made of butyl, a type of synthetic rubber that is highly elastic and at the same time airtight.
✅ Ecovelò inner tubes have extreme characteristics in terms of air tightness and elasticity and can be used for a wide range of tire sizes.