this review title is: do not buy and the content is: i love that is rolls by itself and had extra covers that being said two of covers do not fit and third one was torn before i could use it leaving only one that is of use and i do not believe it will last very long very disappointed in this product my dog likes it but is of no use without covers.there are other information for this review, one is this reviewer did purchase it and the other is 10 people think this review is helpful.