Lightweight, yet durable, Duck Brand Kraft Bubble Mailers help keep a variety of small items safe in the mail while being cost-effective. The mailers are lined with bubble cushioning so you can have more padded protection for shipping valuables you don't want to bend or break in the mail. Perfect for books, crafts and other compact items. No need to use any tape. A durable, dependable and affordable way to mail your belongings or gifts. Mailer is 4 x 7 inches. Imported.