This is a brand new Hot Water Bottle. It is a good quality heavy duty rubber type bottle. It is easy to fill up. Top part has a metal screw section so it easily stays open when you fill it up. It has a cap that screws on. It holds about 2 liters or about 2 quarts and 1/3 cup. Hot water from the tap works great. I don't recommend boiling water because it is too dangerous to try to put in. It is a good quality bag. It is 12 inches long by 7 across. My children love these. I fill them up and they will cuddle up to them. Good for pets too.
I have several styles available and the color red as well if you prefer that.
Thanks for looking!