I stored these in cardboard boxes for a long time. Some of the bags stuck together and tore when I peeled them apart, but the contents are undamaged. I am selling a total of 4 sets of the monotone set. Retail price: Letter paper: ¥540 (2 designs x 4 sheets) Envelopes: ¥500 (20 sheets) *Please purchase after agreeing to the profile and photos (⁎ᴗ͈ˬᴗ͈⁎) 1000