Features： 1、Large Thread Bottle Stopper: Adopt high temperature and high pressure technology, match with large thread bite to achieve the function of compression resistance and explosion proof. 2、Multiple Applicable Parts: Hot compress effect, can be used to warm hands, feet, neck, abdomen, etc. Hot water bag helps improve muscle soreness, dysmenorrhea, etc. 3、Cold Compress Effect: Lasting heat preservation, sealed without leakage. Can also be used as an ice pack or cold water bottle, cold compress to help reduce swelling. 4、Wonderful Gift: Winter hot water bag can be gift for loved one, mothers, friends, relatives, colleagues, etc. on birthdays, Mothers Day, Christmas, etc. 5、PVC Material: Hot water bottle adopts PVC material, safe and skin friendly, soft and elastic, can be kneaded and bent at will, odorless and durable for use. Specification： Item Type: Hot Water Bottle Material: PVC Capacity: 1800ML Package List： 1 x Hot Water Bottle