Choose your size set: (note* set 1 is a Set of 3, all other sets are as labeled.) BLACK VINYL Backing with CLEAR VINYL to insert your business card, photo, or design. Entire calendar (including clear pocket) measures 3.75" x 4.75". STICK UP IN car, on computers, or anywhere you need them. Surface must be clean and dry for calendars to stick. CLEAN THE SURFACE with alcohol before attaching calendar. DO NOT TRY to attach to any cold or freezing surface: it must be warm first. Made in the USA.