Double Dragon 20-Pack A3 C3 Manilla Hard Board Backed Envelopes | 458mm x 324mm | 'Please Do Not Bend' Printed | Padded & Tamper-Proof | Self-Seal Closure

• ✅ PERFECT A3 FIT & PROFESSIONAL LOOK: A3 Manilla Hard Board Backed Envelopes (458mm x 324mm), designed to hold A3 documents, certificates, photo prints, invitations, and cards without folding. Pre-printed with "Please Do Not Bend" for careful handling and a professional finish. Comes in a value pack of 20.
• ✅ RIGID HARD BOARD PROTECTION: Constructed with a 120gsm kraft paper front and 1000 micron hard board back, these envelopes prevent bending and creases, keeping your documents, photos, and artwork safe and intact during shipping.
• ✅ STRONG & SECURE SELF-SEAL CLOSURE: Features a 10mm wide, high-quality self-adhesive strip for quick, tamper-proof sealing — no need for tape or glue, keeping your contents safe and secure.
• ✅ LIGHTWEIGHT & COST-EFFECTIVE: Sturdy yet lightweight design helps save on postage costs. Easily write addresses directly on the envelope or attach sticky labels as needed.
• ✅ ECO-FRIENDLY & SUSTAINABLE: Made from 100% recycled, biodegradable, and plastic-free materials — an environmentally conscious choice for both businesses and personal use.

The Double Dragon A3 Hard Board Backed Envelopes offer superior protection for your important documents, photos, and certificates. Designed to fit A3-sized items without folding, these envelopes feature a rigid hard board backing to prevent bending or damage during transit. The secure peel-and-seal closure ensures tamper-proof security, while the eco-friendly, recyclable material makes them a responsible choice for businesses and individuals. Perfect for mailing legal documents, artwork, invitations, and magazines, this 20-pack provides a durable and professional mailing solution. Whether for office use, business shipments, or personal needs, these sturdy envelopes keep your contents safe and intact.