Feature(may vary by option.)

●Expanding files
●The width of the spine extends according to the amount of documents, so it can be stored compactly when it is small
●Size: 1.6 x 12.0 x 8.7 inches (4.0 x 30.7 x 22

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Description

Great for storing large amounts of papers Spread up to 3.9 inches (10 cm) wide, so you can store documents in a reasonable manner. It can be stretched up to a maximum of 3.9 inches (10 cm), so it can store about 4 to 6 times more than regular files. It expands to accommodate the amount of documents, so it doesnt take up extra space for storage.