※ Please comment before purchasing with your desired quantity. This is packaging material from Package Mail Order Co., Ltd. Seiwa. I purchased these in bulk, but I have some left over, so I am selling them. Product Name: Triangular Carton Black with Window Product Code: 53380 Regular Price: 100 sheets 8,030 yen Images 1-4 are from the official website. Each brown envelope in image 5 contains 50 sheets. Also, all items are unopened, but please note that some of the brown envelopes may have tears. I will sell in units of 100 sheets, so please comment before purchasing with your desired quantity. If you purchase directly without commenting, you will receive 100 sheets. 100 sheets → 3,000 yen (Regular price 8,030 yen) 200 sheets → 5,500 yen (Regular price 16,060 yen) ※ Regular price is calculated from the official website. Please read my profile. I will put them in a plastic bag to prevent water damage and ship them via anonymous delivery.