A4 Plastic mailer 216mm x 356mm 8.5" x 14", 229mm x 305mm or 9" x 12"

Small to medium sized Poly mailer A4 sixed mailer. Size 8.5" x 14" 216mm x 356mm, also 229mm x 305mm or 9" x 12".  Intended use is for small books or smaller items of clothing