Honyarado Cat with Cover Hot Water Bottle 400ml This is a small hot water bottle. Size: Cat Cover Approx. 30cm x 20cm Hot Water Bottle Approx. 20cm x 15cm The black cat cover is cute! I'm selling it because I don't have many opportunities to use it. It's a small hot water bottle, so it's the perfect size for when you're in the car or for the back of your chair at work.