MULTI FUNCTIONAL HOT WATER BOTTLE: Thermoplastic material that is recyclable. Advanced thermoplastic holds heat longer than traditional hot water bottles with cover, also works as an ice pack, or cold water bottle EASY TO USE- Wide mouth is easy to fill and the anti spurt lip prevent water spitting back out. Fill only to two-thirds capacity maximum. It's transparent. No more guesswork about how much hot water is inside BEST ASSISTANT- The classic design of this classic home remedy. Treating sore muscles, stress or arthritis, aches and pains, stiff necks, lower back pain, and other common aches SIZE: 34.5cm * 11.5cm. Capacity: 1000ml NOTICE: Because of the natural rubber material, there may be some odor, please understand. We recommend not to touch skin directly after hot water is injected to avoid scalding, use it safely with suitable temperature. The hot water bottle rubber is not suitable for Microwave oven heating