BOX SIZE: The dimension of box is 14*7.5*9cm/ 5.5*3*3.5 inch (L*W*H). It can hold about 300 to 400 index cards of 3x5 inch. WONDERFUL DESIGN: There are 6 packs boxes that you can classify and store different items into different boxes to find what you need quickly and easily. What's more, There is a slot on the box for labeling to better distinguish. MULTIFUNCTIONAL: This storage box is perfect size to hold index card, bill, note, list, recipe card, flashcard, important paper record, small accessories and more at home , school, office. DURABLE QUALITY: Recipe card box is made of high plastic material, which is sturdy and eco-friendly for long time using. Good tightness of the lid to protect the cards well. PORTABLE AND LIGHTWEIGHT: Index card box is convenient to organize small items and can be carried with you anywhere.