Poly Mailer Bags 24 x 24 - Pack of 50 Interior Dimensions 24 x 24 Exterior Dimensions 24 x 24.5 Opaque mailing envelopes to conceal sensitive or private contents for standard transport Secure poly mailer bags with a strong adhesive seal that once shut may only be opened with a cutting tool The most cost-efficient shipping packaging in today s market provided its lightweight structure Shipping envelopes ideal for soft-goods as it s polyethylene design is puncture-resistant Dependable poly-mailers will protect your products from moisture grime and insects in transit