Teal Metallic Bubble Mailers provide outstanding insulation protection for temperature sensitive products. While providing extra protection, these foil envelopes add a touch of class! Each mailer is made of Metalized Foil Laminated to 3/16" bubble film for maximum protection. This mailer offers a Peel-N-Seal secure closure. Mailer Inside Dimensions: 4.25"x7" Mailer Per Piece Weight: 0.41 oz Made in the USA