DEBRADALE DESIGNS - Blank Unruled Index Cards - 4 x 6 Inches - White - 500 Cards - 5 Packages of 100 - Standard 110# Index Card Stock - 199 GSM - .009 Thick 110# Index. Bright White Smooth Finish on Heavier Weight Card Stock than Other Brands. Suitable for long term use with any type of pen, pencil or marker. Also available in heavier 140# index and 3 x 5 and 5 x 8 sizes. Made in the USA. High quality and precision cut from paper also sourced in the USA. Rest assured that your index cards will be suitable for any purpose. 500 Quantity. Plenty of cards for multiple uses and purposes. Can be used for flash cards, note taking or recipe cards. Recycled Paper. Paper contains post consumer recycled content. These cards are the ecology friendly choice. Wrapped in 100's. Conveniently packaged for organized and safe storage. You can open one package and keep others in reserve for future projects.