These items have been stored at home for a long time. There are 51 sheets remaining. I've checked them myself, and there's no discoloration. If you don't mind items that have been stored for a long time, please consider purchasing! There are no smokers or pets, but please refrain from purchasing if you are concerned about minor details or are very particular. Please refrain from price negotiations or exchanges. I will do my best to ensure a pleasant transaction. Thank you. Printer paper Copy paper Output paper