12.5×19 Inch, Poly Bubble Mailers, #6, 20 Pack Extra Large, Padded Envelopes, Bubble Envelope, With Self Seal Tape, Usable size 12.5×18, 20 Pack American Craftsmanship: Poly Bubble Mailers in the 12.5×19 inch #6 Extra Large Size: Tailored to the #6 size classification for generous packaging space. Bulk Quantity: Each pack contains 20 poly bubble mailers, providing an efficient shipping solution. Self-Sealing: Equipped with a self-seal tape for convenient and secure closure. Usable Size: The envelopes have a usable size of 12.5×18 inches, offering ample space for items.