Smooth Writing with Double-Sided Printing Lines:Versatile use thick paper that can be written on both sides, smooth facilitates smooth writing without worrying about ink penetration, and with double-sided printing line design can help you organize your writing layout and make the entire page readable. Portable Index Cards:Ruled index cards with rings are small and convenient in size, easy to store, and suitable for most pocket sizes, so you can put the index cards in jackets, coats, jeans pockets and bags or hold them directly in your hand, whether for students or adults, for studying are easy to take and can be taken out to write and recite at any time. Double Study and Work Efficiency:Blank note cards with index stickers of the same color help to accurately classify and remark information, doubling study and work efficiency, and hole punched index cards with similar color metal binder rings your record cards will not be lost, and you can easily turn pages without lag, making your things more organized. Diverse Uses:Colored index notecards are ideal study supplies for making lists, flash cards, lists, note recording, speech prompts, test note recording, word memory, etc., and our revision cards are widely used in home, office and study to contribute to the rapid improvement of work efficiency. Colored index card note set, double-sided , smooth writing, compact and portable, can be taken anywhere Equipped with index stickers, accurate classification records, and hole punched colored index cards with metal binder rings, allowing you to fill in and remove pages freely to double your work efficiency. Category: Color Index Cards note:Accessory colors are random, don't accept the specified color Colour:color Material:Paper Size:4.9x2.76x0.04 inches/12.5x7 x0.1cm Package Contents: 125pcs x 5-color cloud index 1pack x 5 color labels 6pcs x 6-color metal loose-leaf rings Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.