Rubber Hot Water Bottle/Hot Water Bag/Hot Water Bottle/Our hot water bottle are made of rubber, 100% leak-proof and BS standard, the size is 500ml, 750ml, 1000ml, 1500ml, 2000ml. The color is Red, blue, green, yellow, orange, purple, black, brown, cream, or the color as customer requested. Individual packing: 1PC/1 OPP BAG or as client's detailed requirementsRubber Hot Water Bottle/Hot Water Bag/Hot Water Bottle/