It's a size that can fit about 7 size M diapers. It can barely fit about 10, but it will be packed( ; ; ) Made of gauze material. Snap button & lid included. I purchased multiple items and am using the same ones, so I'm selling the ones I don't use. I washed it once but haven't used it. I will ship an unused item. ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈ I am not a professional, and this item is being inspected and sold by an amateur. There may be some errors in the size measurements, but I would appreciate your understanding. For items that are not brand new, the description of the item's condition is based on my subjective opinion, so please purchase only if you understand that it is USED. Small scratches and stains may not be mentioned if they are not noticeable at first glance. Please refrain from purchasing if you are very sensitive to these things. If you have any concerns, please ask questions before purchasing, and I will answer them. We cannot accept claims after purchase, so please purchase after you are satisfied. ⭐️I just got out of the hospital after giving birth, so I will be shipping in between housework and childcare. I will basically ship within the specified number of days, but if you need it urgently, please let me know before purchasing!