20 poly bubble mailers! Fashion matte black, 6 x 10". Inside 5 7/8 x 8 3/4". Water-resistant, bubble-lined, tear-proof, and with a strong self-adhesive strip. Get a bunch of mailers in and you're ready to ship when your closet sells! These are great for clothing, books, jewellery... it's a great size for many Poshmark items! For this item, the listed price is firm, but I may be able to do better for greater quantities or bundled with other items. Please create a bundle and ask!