descriptive text - My FAvoRite THinGs

The object I am describing are the things that maybe most of the girl has. It's my favorite things. It was the present from my friends when I celebrated my 17th birthday. I like it very much. It has a smooth texture, the shape is oval with the pink colour, and it's seems like a pig doll. There are white polka dot motive inside this things. The base of this things is made up from rubber. I think it is very soft and limber. I use it every the weather is cold because it makes my feet feel warmness. I usually use it only in my house area. This things are in pairs, so, it is impossible if I just use one of them. About the smell of this things, of course I don't know and I'll never want to know, because I use it almost every day..Hhe.. I think you can guess what the object that I am describing. It's easy, isn't it? So, do you know what the object I am describing?