Here is a practical, inexpensive way to organize, protect and store your collection. It holds approximately 1,100 postcards. It is also great for matchcovers, beer coasters, photos and similar items. It ships flat and assembles easily. Made of sturdy white corrugated. Exterior dimensions are 15 x 7 x 4½", interior dimensions are 14 x 6½ x 4½". Holds items up to 4¼ x 6".