Hot Water Bottle Water Injection Rubber Hot Water Bag Feature 1. Sealed design to stop growing old and leakage. 2. The new PVC environmental defense granules are manufactured, secure and odorless, and pregnant females and children can use them with confidence. 3. The use of utmost temperature and excessive strain technology, anti-compression and explosion-proof. 4. 3mm stripe depth, preserve heat and not hot. Specifics Material: environmentally friendly PVC Capacity: 500ML Color: Pink/Blue/Green/Grey Package includes: 1x hot water bottle