75 (Seventy Five) Size #5 Kraft Road Warrior® Self-seal Cushioned Bubble Mailer/Padded Envelopes (2 Fin with 1 1/2 Extra Long Flap). Outside Dimension is 11 1/4"x 17" and inside dimension is 10 3/8" x 15 1/8". (variation +/- 1/5").

Sturdily built with bubble lined wall construction for extra protection during transit.
Self Sealing Bubble Mailers provide outstanding shipping protection.
Seamless bottom affords additional cushioning protection along with greater overall strength and safety.
Fully laminated kraft and air cellular construction provides outstanding stiffness and puncture resistance.
Convenient self-seal closure saves labor and eliminates the need for staples and tape.

Customer Rating:
Summary: A Good Buy
Comment: Since we ship books often, we purchase quite a few envelopes. Because of my Scotch ancestry, I have always reused envelopes; therefore it is important to order something sturdy. These Self Sealing Bubble Mailers appear to be sturdy enough to use and reuse. Perhaps someone who receives a package from us will be able to reuse the envelope.

Protection of our books is important to us. The bubble lined wall construction will provide extra protection during shipping. The seamless bottom will give extra cushioning so our books can reach their destinations unscratched. Also they seem to be stiff and puncture resistant. The self-seal closures will save time and tape.

The price was right, and we received the order promptly. One envelope near the top of the stack in the box was torn slightly but still useable. Otherwise, they were in excellent shape. Soon, we'll order these mailers in another size.