NewCool 1.8 Quarts Rubber Hot Water Bottle Premium Classic Transparent Hot Water Bottle EXCELLENT MATERIAL: Our hot water bottle made of thermoplastic material that is odorless and recyclable. Advanced thermoplastic holds heat longer than traditional rubber bottles, 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 like those old rubber ones. Fill only to two-thirds capacity maximum. It's transparent. No more guesswork about how much hot water is inside. Before use, allow up to 20 minutes for the bottle to reach its maximum temperature. BEST ASSISTANT: The classic design of this classic home remedy. Treating sore muscles, stress or cramps, arthritis, aches and pains, stiff necks, lower back pain, menstrual cramps and other common aches and and can also double up as a cold compress for kids with fever or to reduce swelling for minor injuries. And easy to travel with, especially on a long flight or bus ride. CARE INSTRUCTION: Grid texture makes skin contact safer and more comfortable. Hot water bottle can cause burns (avoid prolonged direct contact to skin). Prevent contact with hot surfaces and check stopper for wear and tear damage at regular intervals. The bottles should be replaced after two years of use. RISK-FREE GUARANTEE: If you are not satisfied with our products and service, please contact us first. We will try our best to help you solve any problems. We GUARANTEE you a 100% risk-free purchase - replacement or refund or whatever until you're satisfied.