Photograph Size Board Backed Envelopes (267 × 216 mm) — Bulk Rigid Photo Mailers x 22500

Ideal for:
• Photo prints (8×10 style packs), contact sheets
• Flat artwork and illustrations
• Certificates and documents that need “do not bend” protection
• Galleries, print labs and online art sellers

Benefits:
• Robust board backing guards against bending and edge damage
• Quality paper shell for a smart, professional finish
• Bulk supply keeps your fulfilment consistent and cost-effective
• Easy to label, stack and store

Key specs:
• Size: ~267 × 216 mm (≈10.5″ × 8.5″)
• Rigid hard-backed construction (board + paper shell)

If your customers expect pristine prints, this is the simplest way to ship them confidently.