These Postcard pads are spiral bound to securely hold your postcards while you're working on them. When they are removed they have 4 deckled edges for a real artistic feel and flavor. Each is 4-1/2" x 7-1/4" and ready to be mailed from any postal facility you may come across. Select from Whatman soft watercolor paper with 16 postcards, Waterford Cold Pressed Watercolor Paper with 12 postcards, Strathmore 500 Imperial Cold Pressed Watercolor Paper with 12 Sheets, Clester, Albireo and Holbein All Purpose drawing papers with 16 sheets.