JAM Paper Foil Open End Envelopes with Self Adhesive Closures are made out of thin and pliable, yet durable plastic based foil material. Certain to stand out anywhere they are placed, these envelopes have a shiny metallic foil finish. In order to keep the contents placed inside of these envelopes secure, they feature dependable self adhesive peel-and-seal closures.Details:Available in assorted colors5.25" x 8"25 envelopesSelf-adhesive closureFoil