Contains 17 sheets. The initial count was 17 sheets. I have opened the package to confirm the number of sheets, but they are unused. Regarding the size, it is as shown in the second image on the website. I have not remeasured it. I plan to ship this via the post office, so shipping will be on weekdays. There may be instances where it takes longer than the specified number of days to ship. Thank you for your understanding. I have other items for sale, so please take a look if you'd like. Binder, trading card binder, trading card case, ring binder, file, trading card holder, trading card refills.