250ml PVC Hot Water Bag Thickened Transparent Filling Water Hot Water Bottle Winter Warmer Bag(Blue)

1. Material: PVC
2. Capacity: 250ml
3. Safe and environmental protection, comfortable and not hot, explosion-proof and anti-pressure
4. Screw type lid, strong sealing, no water leakage
5. Filling convenient, safe to use, even heat dissipation, easy to carry
6. Thickened PVC, safe and explosion-proof, effectively slow down the loss of temperature, heat preservation is more durable