This package of 10 heavy-duty square storage envelopes is part of the Bee Creative Collection from Honey Bee Stamps. These envelopes are constructed of PVC with a clear view of the products inside of them. They also have an easy top-fold closure. These envelopes are very durable and will last for many years. These envelopes can be cleaned with warm water and mild soap or stamp cleaner. These envelopes are perfect for storing clear stamps and their dies, embellishments, stickers, and more. These envelopes measure 6.75" wide x 6.75" tall.