All of Schwalbes inner tubes are 100% recyclable and are inflated for 24 hours and tested for leaks at the factory before being shipped. Schwalbe inner tubes all have a very high butyl content and a high material purity.
AV2 14" Inner Tubes:
* Size: 14" x 1 3/8"
* AV = Schrader
* 40mm Valve
* Weight: 85g