Size： S: 6 * 10in (1L) M: 10 * 12in (2L)
Material： The cover with double-layer velvet on the surface, the inner liner is made of PVC, and the cover is made of PP
Feature：
1. The bottle and lid are designed to keep heat. The soft cover evenly distributes heat to prevent skin from overheating
2. The hot water bag is leak proof and durable after a 24-hour explosion-proof and leak proof test before leaving the factory. Never fill with boiling water.
3.The wide mouth hot and cold water bottle is easy to fill and use. Hot water bag can be used as hot compress or cold compress. The hot water bag is used to keep warm in winter, relieve menstruation pain, relieve stress, and relieve neck and shoulder pain
4.Hot water bottles from friends and family not only warm your body, but also warm your "heart" in the cold winter