MATERIAL: RLAVBL small shipping box is made of recyclable corrugated cardboard, which is lightweight but sturdy, ensure your stuff safety.DIMENSION: The shipping boxes set includes 50 packs of the cardboard box. The outer size of this small mailer box is 7” x 5” x 4”(L x W x H), the inner size is 6.4" x 4.9" x 3.8". Suitable for packing or mailing those small and lightweight items.Assembles in seconds without tape, glue, or staples.USAGE: It is perfect for mailing or shipping small soaps, toys, biscuits, or other small items. You can arrange these boxes as you like.APPEARANCE: The edges are neat, smooth and no burrs, the product looks very beautiful as a whole.