Thank you for your review, Charlene. We are sorry that this page was found to be so confusing! The "wrap175" is the item code, which is listed under the page title as you change selection and on the size selection buttons. On the sizes listed, the first dimension is the open end size, when laying flat. The second dimension is the length of the cylinder. Our customer service team will reach out to you shortly to see what we can do to help you out!