Package includes: the package contains 500 pieces of cardboard and there are 5 colours, yellow, green, blue, pink and cowhide. Each colour has a box and a box has 100 pieces. There are 5 colours of cardboard to meet your needs. High-quality material: This product is made of high-quality cardboard, the card is designed with rounded corners, the surface is smooth, the writing is smooth, the paper is thick, non-staining, strong and durable and not easy to work with curve. Easy to carry: the size of the card is small and exquisite, you can take it with you after writing the contents, and the box supplied with the card can play the role of storage, which you can easily take and store. Write on both sides: both sides of blank paper cards for DIY can be written on. You can leave a message, draw a mini image or write anything you want to express on these double-sided business cards. Wide range of uses: message cards can be used as form tags, word cards, bookmarks, DIY gift cards, thank you cards, memos, note cards, vocabulary cards, message notes, reminders, luggage tags, business cards, etc. can be used.