Oxford Color Coded Ruled Index Cards allow for quick filing and retrieval. Ruled on one side for easy note taking, these assorted color index cards will help you stay organized at school, home or in the office. The 3 x 5 inch size is versatile enough for studying, presenting, and list-making. Paper made from 10% recycled fiber with 10% post consumer fiber. Assorted colors include blue, green, yellow, orange and red. 100 cards per pack.