1 inner tube for 16 inch boy/girl bike

✅ Inner tube 16 X 1.75 / 1.90 / 2.125 (1 PIECE)
✅ 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.