This Review Title is Maybe 6" circumference but not diameter and the content is: These barely fit a 4" roll if you squish a little. I ended up using on my a 3" roll but I wanted something larger because I have other covers for the 3" already. Definitely would not even begin to fit a 6" roll..There are other information for this review, one is This reviewer did purchase it and the other is 1 people think this review is helpful.