- Internal Measurements 235x340x35mm (approx. A4+ )
- Height adjustable by up to 35mm
- Self Sealing
- Strong, bend resistant
- Ideal Book pack
These rigid board envelopes are strong and bend resistant with reinforced edges. They are height adjustable by approx 50mm so are ideal for sending bulky brochures, catalogues, photos, cds, and documents safely and securely. They are quick to seal with a strong self sealing strip, and quick to open with tear off perforations. This size is oversize A4 and perfect as a book mailer.