SMALL BOX SIZE - The internal dimensions of the flat cardboard boxes are 4 x 4 x 2 inches (LxWxH), and the external dimensions are 4.4 x 4.01 x 2.03 inches, perfect for shipping mailing packaging; LIGHT-WEIGHT YET STURDY - The horizon Kraft shipping box mailers are made of 32ect E flute cardboard with lid, which is light-weight (only 1.19 ounce) yet sturdy to ship mail small items, perfect for your online retail wholesale business shipment as subscription boxes; FLAT PACKING - the 50 pack of black cute indestructo box mailers are shipped to you in flat packing and empty, which can save your storage space; EASY TO FOLD - The corrugated boxes are easy to put together in seconds, the tuck top box has two locking taps to closure boxes and keep your packages secure during shipping; ELEGANT FOR BUSINESS - The outer packaging boxes are decorative in black paper, you can DIY to paint on it or stick your own labels, stickers, ribbons on it, which is very elegant for your business or small gift packaging; Standard shallow ECO pretty shipping shipong postage box with lids to mail small jewelry, business card, soap, crafts; Square corrogated corrugate boxes with flap lids, great for shipping to a PO box; Nice cardboard delivery boxes for packages, eco friendly and recyclable; Paper carton box boxed, Small folding collapsible product carry boxes, 50 bundle set; flip top boxes to decorate for slime business ebay in mixed sizes