350GSM (275 x 215mm) Quarto Semi-Rigid Cardboard Mailer Envelope

Mailer Width ~ 275mm  (opening) Mailer Length ~ 215mm Flap Quarto-size Mailer Thickness ~ 350GSM (Semi-Rigid Cardboard) Peel & Seal with Adhesive Color ~ Beige/White No Prints, No Logo **Not suitable for the unbendable item