Create a memorable experience for your customers by using these cute high- quality designer poly mailers! They are thick, durable, tear-resistant and waterproof, with a strong self-sealing adhesive for easy peel and stick packaging! Count: 50 Pack, Size: 10x13 Inch, Design: Transportation, Material: Durable 2.5 Mil Polyethylene, Product: Unpadded Poly Mailer Envelopes. 100% Recyclable.