KKBESTPACK bubble mailers 0, 6x9 inches of usable interior space. Made from durable kraft paper and lined with bubble cushioning, these padded envelopes provide lightweight protection for small items during shipping. The self-seal adhesive strip ensures a secure closure without the need for tape. These envelopes are suitable for mailing documents, cards, jewelry, cosmetics, accessories, and other lightweight items. The kraft paper supports shipping labels or stamps. With a pack of 25 envelopes, this solution is designed for both home and business use. The sturdy construction and bubble padding help protect contents from damage during handling and transit.