Strong envelopes made of corrugated cardboard, suitable for brochures, catalogues, magazines, books, mail order catalogues, etc. The secure ColomPac self-adhesive seal saves time and other sealing materials. In addition, the integrated tear strip ensures easy removal of the contents. F-flute. Extremely stable bend protection due to solid corrugated cardboard. All-round edge protection. Reclosable with closure clip. Injury protection due to compliance with the US safety standard.