18x24 Inch Stay Flat Rigid Cardboard Shipping Mailers

Our white rigid stay-flat mailers are made of 100% recycled eco-friendly chipboard, specially designed to protect art prints, photos, posters, documents and flat books from bending, folding and damage during long-distance international shipping. Peel & press self-sealing design, easy to operate, no extra tape needed, safe and efficient express packaging solution for business and personal mailing.

Core Product Advantages

• Strong rigid anti-bending structure, keep contents perfectly flat and intact
• Peel & press self-adhesive sealing, with convenient easy-open tear tab
• 100% recycled white cardboard, eco-friendly and sustainable packaging material
• Oversized size fits 17x23 inch items, supports up to 3/4 inch thickness
• Blank clean white surface, support custom brand logo printing freely
• Bulk 50-pack value set, cost-effective for wholesale and daily shipping use

Product Size & Parameters

• Outer Size: 18×24 Inch
• Applicable Inner Size: ≤17×23 Inch
• Maximum Loading Thickness: 3/4 Inch
• Material: High-density Recycled White Chipboard
• Sealing Way: Self-adhesive Peel & Press Closure
• Package Quantity: 50 Pcs Per Pack

Wide Application Scenarios

Perfectly used for artwork prints, photography pictures, wall posters, flyers, magazines, large books, documents and all kinds of flat goods packaging. Widely suitable for e-commerce sellers, art studios, printing shops, office mailing and bulk logistics distribution.

Packing & Delivery Information

• Sample Lead Time: 3-5 Working Days
• Bulk Order Lead Time: 7-12 Working Days
• Trade Term: FOB Qingdao
• MOQ: 50 Pcs