1,high quality rubber 2,suitable for otr tire 3,high quality certification 4,good sales service ... 5,best price 26.5-25 Tire Tube For Off The Road Tyre 1, Main Technical Parameter: SizeValve HoleQuantity ... inner tube are good quality.Experienced engineers and workers .Soft for long time . 26.5-25 Tire Tube For Off The Road Tyre