Blake Premium Secure Gusset Envelope C4 125gsm Peel and Seal Pack of 125

"One of the strongest envelopes in the world", Blake Premium Secure Envelopes will resist tearing under the strongest of hands. Unique to Blake, these paper pocket envelopes are tear-resistant, water impermeable, burst-resistant, greaseproof, completely opaque and fully overprintable - a must-have for sending confidential and sensitive documents, high value items, price lists, brochures, electronic media and more.

This C4 envelope has a 25mm gusset which expands to accommodate thicker and bulker mailings.

. High strength paper-based pocket envelope with expansion gusset
. Extremely tear-resistant
. Water impermeable
. Greaseproof
. Tamper-evident
. Printed blue opaque for security
. Hot melt peel and seal flap for secure sealing
. Digital printer safe
. Size: C4 (324 x 229) + 25mm expansion gusset
. 125gsm paper
. White
. Pack of 125