Designed with convenience and functionality in mind, these index cards are a must-have for office, school, and studying purposes. This ring allows for easy installation and secure fastening, keeping your notes organized. Not only are they resistant to creasing, but they also provide use. Features -Color:As Shown -Material:Paper - Size: 12.80X7.60X0.10cm/5.03X2.99X0.04in - Sufficient quantity: The set includes plenty of index cards, ensuring you have your note-taking needs. - Paper material: Made of selected paper, these flash cards are smooth and easy to write on, ensuring a comfortable writing experience. - use: The thick and smooth paper material allows these index cards can withstand long-term use without wrinkling or tearing. - Versatile use: These lined flash cards can be used for a variety of purposes, including studying, organizing, and more. - Practical present: These note cards make an excellent present for students and anyone who needs to take notes and stay organized. Package list: 1000 x index cards