Description: 【Package List】You will receive 4 pieces blank note cards for studying. Each book contains about 100 blank word cards, which can be used to meet your different needs. 【Loose Leaf Design】Index Cards with Ring adopts a loose leaf design, which makes it easy to organize, replace and add cards, making it convenient and flexible to use. 【Multifunctional】Flash Cards with Binder Ring can be used for English memory learning, taking word phrases and sentences, leaving messages, taking notes or other information to improve learning efficiency. 【Premium Material】Study cards are made of paper material, which is environmentally friendly and sturdy and can be used for a long time. 【Easy to Use】Message note cards are small in size, with binder ring, easy to carry and fix, and detachable, making it convenient for learning, memorizing and categorizing at any time. Specification: Material: Paper Size Chart: 7cmx4cmx2.5cm/2.76inchx1.57inchx0.98inch Package Includes: 4 Index Cards with Ring(400 sheets) Note: Please allow slightly errors 1-2cm differences due to manual measurement.