ECT-32 corrugated cardboard Easy to Assemble: These small shipping boxes are simple and quick to assemble WITHOUT GLUE, STAPLES OR TAPES. 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 the items inside. Widely Used: Recyclable 8 x 8 x 4 shipping box 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 carrier specifications. Fine Kraft Paper Surface: No printings on the 8x8x4 small cardboard boxes and great for small businesses to displaying 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 PACKED IN A BIGGER CARTON to prevent damage during transit, and flat packing method to reduce volume and storage space. These small shipping boxes are assembled in seconds without tape, glue, or staples. Compared with the traditional design, high-quality corrugated cardboard with slots makes the rectangular mailing boxes RELIABLE AND STURDY, and the standard 90°angles will protect items inside while delivery.