The Packing Cube 3pc set includes 3 different sized packing cubes. Each cube has an additional sleeve that allows piece to be compressed and folded into the pouch. Pouch sizes: Small 8.5"H x 6.5"W x 3.75"D, Medium 16"H x 10.5"W x 4"D, Large 20.5"H x 16"W x 4.25"D. Medium and Large sizes will pack into small size during shipping.