This is a great set of index cards. There are 600 in the pack with six different colors of pink, blue, green, yellow, orange, and purple. You get 100 cards of each color. The cards are 3x5 inches and of extremely good quality paper. They are small enough to fit in a pocket or a purse for all of your on the go note taking needs. These cards really help because I use them to study. I write the question on one side of the card and then I write the answer on the. They are really easy to test yourself for an upcoming exam. The only downside is that I didn't buy more than one.