20 (10” x 13”) Mushroom Poly Mailers Poly Bags Shipping Bags BRAND NEW! New Without Tags (NWOT) Never Used! Colors may vary due to lighting, photography and/or your computer resolution. HIGH QUALITY, DESIGNER Poly Mailers for your small business. Use these Poly Mailers to dress up your orders and make them look professional. SIZE: 10” x 13” RESISTANT to Water, Punctures, and Tears SECURE CLOSURE LIGHTWEIGHT, so if you’re worried about the weight of your package, use these USPS-APPROVED mailers/bags instead of boxes that add weight. Any questions? Please ask.