[High -quality] Our flash card is made of high -quality thick paper, and safe, suitable for pens, smooth writing, no ink exudation problems, not easy to tear and rupture, and can be used for a long time. [Perfect Size] The size of the card is 3 x 5 inches, which is small and portable, so you can put the card in a pocket or backpack for easy removal and record at any time. With 9 stainless steel live clips, it is convenient to organize the card together, and it is easy to hang or remove the card. [Double -sided design] Double -sided printed drawing card, double -sided line, easy to take notes, you can use two sides to write, this is a more economical paper. In addition, 10 bright colors can improve your learning efficiency and easy classification. [A variety of applications] Our color notes can be widely used in your family, schools, universities, colleges, and offices. perfect study or work tools, systematically study words, formulas and arithmetic, prepare for exams, list lists, take notes, etc. [What will you get] You will get 10000 color index cards with rings, including 10 different colors, 100 pieces per color. A sufficient quantity and diverse colors to meet your daily learning and work needs. Material: Paper colour: As shown Package Contents: 1000 * index cards 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.