This poly mailer is a versatile solution for your shipping needs. With self-sealing plastic and a variety of sizes available, it can be used for clothing, books, CDs/DVDs, cosmetics, and jewelry. The material is made of polyethylene, which is 100% recyclable, making it an environmentally friendly option. The white color and envelope shape give it a professional look that is suitable for business and industrial use. It comes in a unit of 50 or 200, depending on your needs. This product is an unbranded/generic item and the country/region of manufacture is unknown.