design of the bottom pulley of the clipping book paper storage: Two pulleys are installed at the bottom of each clipping book paper storage box to facilitate promotion, pulling or moving. Large capacity: 12 x 12 Paper storage Internal size: 12.25x2.75x9.5 inches, a total of 3 packs of cutting post storage boxes, each clipping book paper storage box can hold about 400 pieces of paper, suitable for storage, classification, and finishing a large number of 12x12 inchThe clipping book. Convenient to use: Open lid and U -shaped side design for easy putting and removing paper.12x12 paper storage rack can effectively use space.The smooth edge of the organizer can better protect the corners of the clipboard and other files. Strong durability: 12x12 paper storage is made of thick PP plastic, which is not easy to break or deform.The parent external allows to quickly view and access documents to keep your favorite clipboard neat and orderly. Multi -purpose: The clingling book storage rack is very suitable for storing magazines, photos, stamps, envelopes, invoices, bills, books, files and clingling books, drawing, folders, etc.Suitable for family, office and schools.<br><br>color: parent Material:plastic<br><br>Package Contents: 3 x storage box<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.