・110kg: 38 sheets ・135kg: 40 sheets This is the set. Purchased from Yume-Gazai 4 years ago. There is no yellowing, but one sheet of the 110kg paper has a stain on it from the time of purchase. I have not checked all the sheets, so there may be other unnoticed stains. Please understand that this is a used item that has been in someone's possession before, and purchase accordingly.