Review on 🧊 Kälvin Insulated Water Bottle, 7.6 oz (225ml) - Shake-to-Activate Hand Warmer and Ice Pack, BPA-Free, Hot Water Bottle [Silver] by Matthew Harris

I wasn't 100% sure what the bottle was when I bought it, a friend told me about it. Let me just say it's brilliant. Fill the bottle with hot water, shake vigorously a few times, and my arthritic hands are instantly relieved. I heat the water in the kettle, I like it when the water is hot. Please note that the water used can get very hot depending on the temperature. I use it while watching Wheel of Fortune, 30 minutes is perfect. I've been using it for about a week and I have no pain in my arms when I sleep at night. In the morning I fill it up with hot coffee, which is great for walking the dog on cold days. Shake shake shake!