Rediform-Undated Monthly Calendar. Start your year on whatever month you choose with this undated monthly desk pad. The grid is only labeled with the days of the week from Sunday to Saturday. Sheets are bound at the top and perforated for easy tear-out. The desk pad features a reinforced backing card and two black corners at the bottom secure the monthly pages in place. This package contains one 17x22 inch undated monthly calendar. Imported.