I purchased these approximately 20 years ago in the Himalayas, I believe, and used them two or three times before storing them in a warehouse. The condition is quite good, I think. I unfolded and checked two for the photos, but I haven't checked the other three. Since I used them evenly, they are probably in similar condition. Please refrain from purchasing if you are concerned. I can sell them individually, but due to shipping costs, they will be 1500 yen each. Thank you.