APQ White Rigid Mailers 9 x 7 Inches. Pack of 10 Photo Mailer Envelopes. Flat Cardboard Mailers with Self-Seal Closure. Sturdy Cardboard Photo Envelope. Recyclable Hard Shipping Envelopes Rigid

The APQ Board Envelope Stay Flat Mailers are rigid photo mailers that are perfect for sending large or fragile items through the mail.

These envelopes are made of high-quality cardboard and have a unique design that allows them to stay flat when opened, making it easy to insert and remove items without any damage.

They come in various sizes to fit different sizes of items and are ideal for shipping artwork, photographs, and other sensitive materials.

The envelopes are also reusable and can be used multiple times, making them a cost-effective option for sending large or fragile items through the mail.