EcoEnclose 100% Recycled Padded Mailers are made of upcycled newspaper that is matted into a layer of cushioning, then sandwiched between two layers of recycled Kraft paper. Once used, it is readily curbside recycled. 100% recycled content, 20% post-consumer waste made with macerated newsprint Curbside recyclable & naturally biodegradable Lightweight & affordable Tamper-evident Self-seal adhesive closure 1 unit of this product contains 10 mailers.