The product is a set of 100 poly mailers shipping bags by KKBESTPACK, designed for waterproof packaging. These premium bags feature self-sealing and peel-n-seal closure for secure shipping. With exterior dimensions of 10×13 inches, these poly mailers are suitable for everyday shipping needs. The interior dimensions of the bags provide ample space for packaging various items securely in the mail. Ideal for businesses in need of reliable and durable mailing envelopes, these poly mailers offer a practical and efficient packaging solution. Brand New Sealed pack of 100 waterproof 10×13 polymailers great for safe and easy shipping Includes free shipping!