1. Material: PVC 2. Spiral groove design, stronger sealing, shaking without leakage 3. Physical conduction and uniform heat dissipation, lasting and constant temperature 4. Plush, skin-friendly, heat preservation and prevent hot proof, warm and lasting 5. The liner will is anti-skid, plush bags are not easy to fall 6. Explosion-proof and pressure prevention, and safe in use 7. Large water injection mouth, convenient to add water, not easy to burn 8. Size: 500 ml 13.3x21 cm, 1000 ml 16x26 cm 9. Weight: 500 ml 138 g; 1000 ml 196 g
