This hot water bag stopper has excellent rubber material, is safe and practical, has no peculiar smell, and has good heat insulation effect. The rubber materials have strong thermal insulation properties. So, this is a good replacement stopper for hot water bags, etc. You will love these good kitchen helpers. Features -Color:Assorted Color -Material:Rubber -Size:4.20X3.00X3.00cm/1.65X1.18X1.18in -Size:4.00X2.50X2.50cm/1.57X0.98X0.98in -Size:3.70X2.20X2.20cm/1.45X0.86X0.86in -This rubber sealing stopper is perfect for your hot water bags and can be a useful hot water bag accessory. -Our this stopper is carefully polished with a smooth surface, don't need to worry about it hurting your skin. -The unique yet simple design of this hard-wearing stopper with no extra tricks is suitable for your hot water bottle. -Easy to carry or store, this hot water bottle stopper won't be trouble for you to carry and can be used anywhere. -This hot water bag stopper is one of the perfect choices for kitchen use to friends and family. Package list: 3 Water Bag Stoppers