This is a "Chikawa New Year's Money Envelope 17-Piece Set." The set includes 17 different designs, one of each, for a total of 17 envelopes. The material is paper. Bulk and individual sales are available. There are several of each design in stock, so I can accommodate requests for specific quantities. I will consider the price based on the shape, number of envelopes, and shipping costs, so please leave a comment if you are interested. I bought these in bulk because I thought they were cute, but I ended up with too many, so I'm offering them as a giveaway. The outer bag has been opened. They were stored in a clear file in a dark place, so there are no noticeable scratches, stains, or folds, but please be aware of this if you are sensitive to such things. Anonymous shipping is also available for an additional fee.