Pallet packs are basically boxes on pallets, the difference is how they are attached to the pallet. The pallet pack comprises of a 4 way entry pallet, base tray which usually has a 100mm lip, a corrugated cardboard box sleeve which has concertina creases into it so it is collapsible, and a corrugated cardboard cap with a 100mm lip that fits over the corrugated cardboard tray. The material used is usually a mixture of conventional double wall corrugated cardboard board usually a 300K/300T "BC" double wall for the tray and cap, the sleeve can be in the same corrugated cardboard box material ,or in a heavy duty corrugated cardboard box material. The boxes are flat packed. The tray is stapled (stitched to the pallet), the sleeve sits in the tray and the lid fits over the tray. They have the advantage of being able to be re-used.