40 PACK: Set of 40 black 9x6x2 boxes in the package, unfolding stored flat, and wrapped in a cardboard box
DIMENSION: Outer size of cardboard shipping boxes is 9"(L) x 6"(W) x 2"(H), and the inner size is 8.6"x5.9"x1.9"
MATERIAL: Black corrugated boxes are made of qualified reusable cardboard. 32 ECT grade, sturdy for daily or business use
EASY TO FOLD: The black mailer boxes for packaging small business can be easily assembled strictly by pre-crease lines without glue and tapes
WIDE USAGE: The black shipping boxes can be used for mailing, moving, or storing small items. The solid color surface is suitable for putting stickers and labels to personalize
