When I detach and mail my payment in with the 2016 Form 1040-V payment voucher is that all that needs to be included? Are the other pages for my personal file?

I see that the last page is the amount that will be refunded to me which I selected to be mailed to me by a paper check. I just want to be sure that all I need to send in is the 2016 Form 1040-V payment voucher with a check made payable to the "United States Treasury" with my social security number written on it