Kraft Bubble Mailers #0 Size, 6"Wx9.25"L Self Seal Closure, Padded Cushion Envelope, Yellow Brown Mailing Shipping Envelopes Paper Bag 4PC. These large bubble mailers 6"Wx9.25"L lips are strong yet lightweight to save and protect your items; These 6"W x9.25"L bubble mailers have a peel and seal closure for a clean, sanitary seal; simply pull off the strip from the padded envelope and press closed; These envelopes are great for a variety of uses in the home and office, from mailing holiday presents with bubble wrap