✔ PREMIUM MATERIAL: B-Flute corrugated cardboard, Factory standardized production, 100% Recyclable and Reusable – rigid cardboard, excellent performance. ✔ STRONG TO USE: Made from thick and durable kraft that won’t bend or fold easily.

8″x6″x4″ Shipping Boxes Set of 5, White Corrugated Cardboard Box Literature Mailer 5 Pack：8x6x4 inch outer size, and 7.5×5.9×3.9 inch inner size. Material：Made of recyclable corrugated cardboard，Sturdy enough for daily use. Easy use：Assembles in seconds without tape, glue, or staples. Usage：Can be used for shipping, mailing or storage some small items. It is very suitable for your own label or DIY. DIY：No printings on the box for small businesses to display your brand, label, and gift stickers.