These study cards are convenient to write all kinds of messages, making DIY greeting cards, bookmarks, memo pads and more. And These study cards are good size for you carrying by hands or putting in your bags, easy and convenient to store. Feature - Color: White - Material: kraft paper . - Size: 9x5.5x0.1cm. - Binder ring: comes with stainless steel bender rings, which are easy to install and keep them together, convenient to or take down the cards. - Notepad memo scratch pads for outdoor activities recording and tactical pocket. - Wide application: these index cards are good for taking notes, studying or working, you can apply them at home, school, office or any other places. - Single hole punched with one stainless steel binder ring. - Great for notes and studying, cab be used to DIY greeting card/ bookmark. - Notepad memo scratch pads for outdoor activities recording and tactical pocket.