MUJI Nylon Mesh Bag-in-Bag A4 Horizontal I haven't had a chance to use this much since I bought it, and I've only used it a few times. There are no noticeable stains, but please understand that this is a used item. It will be shipped in a waterproof bag and an envelope. Due to the size, it will be folded in half around the middle for packaging, so please be aware of this. It will be shipped via Yu-packet Post, which can be delivered to a mailbox.