White Paperboard Rigid Mailers, Stay Flat Self Seal Envelopes, 50 Count, 12.5 x 12.5 in

Ensure your delicate photos and important documents arrive in pristine condition with these heavy-duty rigid mailers that provide ultimate protection against bending and damage.

Shipping sensitive items like vinyl records, professional photography, or legal documents requires a packaging solution that guarantees security and professional presentation. These 12.5 x 12.5 inch white paperboard rigid mailers are specifically engineered to maintain a flat profile, preventing unsightly creases and corner damage during the shipping process. Constructed from robust 550 GSM chipboard, these envelopes offer a heavy-duty barrier that eliminates the need for additional stiffeners or bulky box packaging. Whether you are an artist sending out limited edition prints or a business owner mailing high-quality marketing materials, these stay-flat box mailers provide the peace of mind that your contents remain immobilized and shielded from impact. The clean, white exterior offers a professional appearance for your brand while serving as a versatile canvas for custom labels or stamps. Designed for high-volume efficiency, the self-sealing adhesive strip ensures a permanent, tamper-evident closure that streamlines your fulfillment process. These mailing envelopes are the ideal choice for anyone looking to reduce shipping costs without compromising on the integrity of their valuable items. By choosing these 550 GSM envelopes, you are investing in a reliable logistics partner that prioritizes the safe arrival of every shipment, enhancing your reputation and customer satisfaction. - RIGID NO-BEND DESIGN: The 550 GSM paperboard construction provides exceptional stiffness to ensure your photos, artwork, and certificates arrive flat and professional without any unwanted folds or creases.
- EFFICIENT SELF-SEAL CLOSURE: Featuring a high-strength adhesive strip, these envelopes allow for quick and secure sealing that saves time in your shipping workflow while providing a tamper-evident barrier.
- VERSATILE SHIPPING CAPACITY: Perfectly sized at 12.5 x 12.5 inches, these mailers are compatible with a wide range of items including 12-inch vinyl records, square scrapbooking pages, and large-format business documents.
- PROFESSIONAL AESTHETIC: The crisp white chipboard surface provides a clean look that enhances your customer's unboxing experience and allows for easy labeling or branding with custom stamps.