Feature:1. Hot water bottle is made of high quality PVC material, small and portable, soft and comfortable, warm and leakproof2. The selection of materials is strictly controlled, and the internal insulation layer is implanted for waterproof and leak‑proof protection, protect from inside to outside3. There is a large threaded bottle stopper, seam waterproof mouth is well sealed and leak‑proof4. edges and surface temperature will not be too high, easy and safe for you to operate5. The product is suitable for keeping warm in winter, heat and cold therapy can be used to relieve pain and sports injuriesSpecification:Item Type: Cartoon hot water bottleMaterial: PVCFunction: Suitable for keeping warm in winter, heat and cold therapy can be used to relieve pain and sports injuriesSingle Size: Approx. 24.8 x 16.2 x 4cm / 9.8 x 6.4 x 1.6in(manual measurement for reference)Use Time of Water Bag to Keep Warm: Outdoor: 2-3 hoursRoom Temperature: 3-5 hoursBedding: 8-12 hours Package List:2 x Cartoon Hot Water Bottle