Poly Mailers Shipping Envelopes Self Sealing Plastic Mailing Bag Water resistant. Introducing the self sealing white recycled poly mailers or polymailer bags- the must-have solution for small business needs, bulk packaging and safe shipping. Made from recycled materials, these flat shipping bags are not only eco-friendly but also provide superior protection for your products. The 8×11.5 inch size is perfect for fitting most products and the flat design ensures efficient use of space when packing in bulk. The bags are also lightweight, making them ideal for shipping items through postal services. ✨Features ✨ 💫Waterproof, Durable 💫Self-sealing adhesive 💫Made from Recycled materials 💫8in x 11.5in size 💫Perfect for shipping small stuff