Tropical Pineapple Poly Mailer Envelopes - pack of 98, brand new. These modern, ultra durable poly mailers are made of tear-resistant plastic and come with a self-sealing adhesive strip so you don’t need extra tape or to lick it. Lightweight and ideal for shipping clothes, apparel, and non-fragile items. Envelopes measure 10” wide by 13” tall. Great for gift giving, entrepreneurs and side hustles.