Hot Mini Water Bag Refillable Portable Hand Warmer Water Bottle

• Not electric, no need to charge, will not burn or boom, it is safe and handy
• No chemicals used, it is non-toxic
• Plastic plug holds tightly and keeps heat inside so that you can keep warm
• Corrosion-resistant
• Materials: PVC and Sponge inside
• Type: Water-filled type, easy to use and environmentally friendly, recycle