⭐【PACKAGE INCLUDES】6 sets index cards, 50 sheets for every color, 300 pages in total; Size: 5.5 x 9 cm/ 2.2 x 3.5 inches, proper size for you carrying. ⭐【6 COLOURS】Orange, pink, purple, blue, yellow, green, you can make special mark according to their different colors, easily sort cards by subject or class. ⭐【BINDER RING】Comes with 6 pieces stainless steel bender rings, which are easy to install and keep them together, convenient to hang or take down the blank cards. ⭐【PORTABLE】Notepad memo scratch pads for outdoor activities recording and tactical pocket. ⭐【WILD APPLICATIONS】These flip index cards are good for taking notes, studying or working, you can apply them at home, school, office.