12x9x4 inch Black Shipping Boxes Set of 20, Corrugated Cardboard Mailer Box

Key features

• [ Premium Black Rigid Cardboard Boxes ] : These sleek black corrugated cardboard boxes offer a professional presentation, ideal for both shipping and gifting. Each box features outer dimensions of 12" x 9" x 4" (L x W x H) with a tailored interior space of 11.6" x 8.8" x 3.9". This practical set includes 20 pieces, ready to use straight out of the box. Select the perfect size to meet your specific packaging needs.
• [ Durable Corrugated Construction ] : Crafted from high-density corrugated kraft paper, these 12x9x4 inches shipping boxes deliver exceptional strength and resilience to protect your items during transit. Precision-cut edges ensure a smooth, burr-free finish for a clean, professional appearance. The convenient tab-locking design enables tool-free assembly while providing a secure closure, giving you peace of mind that your products will arrive safely.
• [ Tool-Free Assembly in Seconds ] : These 12 x 9 x 4 inch mailer boxes set up effortlessly in seconds—no glue, staples, or tape required. The tuck-top closure features a secure locking tab to keep contents firmly in place. Precision pre-creased folds enable fast, straightforward setup, making them a convenient packaging solution for small businesses.
• [ Versatile Applications ] : These multi-purpose corrugated boxes accommodate a wide range of products, from apparel, books, and accessories to small electronics, jewelry, and handmade crafts. Whether you're an e-commerce seller, a small business owner, or managing shipping needs, these boxes deliver reliable performance. Available in multiple sizes, they allow you to meet various shipping requirements and streamline your operations efficiently.
• [ Endless DIY Possibilities ] : Create a lasting impression with these elegant black mailer boxes, featuring a smooth surface ideal for custom branding. Personalize them effortlessly with labels, stickers, or ribbons—perfect for small business packaging or thoughtful gift presentation. Whether you're a growing startup or an established brand, these shipping boxes offer an affordable way to stand out. Add your unique touch and turn every shipment into a memorable unboxing experience.

Free shipping included. 30-day hassle-free returns.