Check the listing for details. 10x13 Flat Poly Mailers Designer Self Adhesive Shipping Fun Bags 20-200 Assorted. Condition: New. Listed at 9.99 USD. Description: Colorful and Fun Polka Dot 10x13 inch FLAT POLY Mailers These Beautiful Mailers are Amazing! Choose from 5 beautiful colors! The Stars, Pink, Teal, Purple and Blue! Ø Beautiful Colors to help you stand out and make shipping fun. Perfect way to help build your brand. Ø Self Sealing Adhesive Strip, Easy Peel and Seal. Tear Strip Adhesive will bond and hold for over stuffing. Strong and DurableØ Non-Transparent -Their opaque solid color hides the precious items you have inside.Ø Inner Lining protects your products from abrasions.Ø All of our mailers are UPS, FedEx & USPS APPROVED! Our Product of mailers are made of High strength material, that will allow you to fill the mailer entirely and not have to worry about tearing and ripping. Not only do they work great, they look great too! Also great for saving on postage as these are extremely lightweight! *Tints may vary slightly from pictures 5. How pcs in pack by your choice.