Hot water bag 1,Item number: QF-HB380, 2,Material: Rubber. 3,Size: 2000 ml. 4,Colors: mixture. Hot water bag.Different sizes,500 ml,750 ml,1000 ml,1500 ml, 2000 ml,2500 ml.Good quality, low price.Reliability supplier.Large quantity of stock.OEM is welcomed. Rubber hot water bag