Specifications: Color: white Cover material: kraft paper Inner page material: blank paper Size: 8.9 * 5.6 cm Weight: 60 g Number of pages: 50 Package includes: 12 x paper flashcards 12 LEARNING CARDS: This flashcard vocabulary set includes 12 flashcardsRing flashcard sets included.Each book contains 50 white sheets with rounded corners.The index books all come with a metal ring to hold all the sheets together.The brackets can be pulled apart.The index cards are 5.6 cm long and 8.9 cm wide.50 index cards: each pack contains 50 blank sheets of paper for writing on or decorating.The surface is suitable for sketching, drawing and writing.The blocks are portable, lightweight and small enough to carry in your pocket.The index cards have holes on the top for the ring binder.The cards can be used for learning, as a memory study aid and for recording results in outdoor sports and activities.RING BOOKS: All index cards each contain a durable metal ring that allows you to leaf through the pages.The rings can be inserted into the holes at the top of the pages.This keeps all the pages of the book together and makes it easy to hang or take down the cards.VERSATILE USE: These flip cards are a perfect size and are ideal for taking notes, studying, at school, at university and in the office.The cards can be used as flashcards for a convenient way to memorize something complicated like vocabulary, biological terms, or medical terminology.They can also be used for art such as making creative greeting cards, bookmarks and games such as a deck of playing cards or tarot cards. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.