Easy to Assemble: These shipping boxes are simple and quick to assemble without glue, staples, or tape. Please refer to the guidance in the images or video.Crush Resistant: Compared with the traditional design, high-quality ECT-32 corrugated cardboard with slots makes the rectangular mailing boxes reliable and sturdy, and the standard 90°angles will protect items inside while delivery.Widely Used: Recyclable 10x7x3 shipping boxes fit for mailing, packaging, and storing small and lightweight fragile items, such as books, CDs, T-shirts, hats, mugs, and so on, can meet most shipping carrier specifications.Fine Kraft Paper Surface: No printings on the cardboard boxes for shipping and great for small businesses to display your brand, label, and gift stickers. Gives your products that professional final touch when reaching customers.Pack of 25: All 25 kraft brown mailer boxes are packed in a bigger carton to prevent damage during transit, and shipped flat to reduce shipping costs and storage space. Product Description Crush Resistant/Easy to Assemble/Widely Used Compared with the traditional design, high-quality ECT-32 corrugated cardboard with slots makes the rectangular mailing boxes reliable and sturdy, and the standard 90°angles will protect items inside while delivery. Recyclable shipping boxes fit for mailing, packaging, and storing small and lightweight fragile items, such as books, CDs, T-shirts, hats, mugs, and so on, can meet most shipping carrier specifications. Have It with Confidence Ideal for small businesses No printings on the cardboard boxes for shipping and great for small businesses to display your brand, label, and gift stickers. Fine Kraft Paper Surface Gives your products that professional final touch when reaching customers. Save Space All 25 kraft brown mailer boxes are packed in a carton, saving you a lot of space and hassle. Easy to Assemble These cardboard shipping boxes are simple and quick to assemble without glue, staples, or tapes. Tips for Selecting Sizes Please note that you should refer to the inner size. For example, 10" small shipping boxes can't hold a 10" book, because the inner size is 9.6". Make the box whatever you like DIY BOXES My love is written in the box ever since the whole world is you. MEBRUDY teaches you how to assemble Shipping Boxes in 10s