This listing includes the following: - 1 bottom 2 inch solid black foam - 3 middle 1 inch solid black foam - 1 lid foam(convoluted) - 3 ABS 1/4"(approx) Red plastic sheets(creates strength and shadowing for tool control) & 1 bottom red crosslink 1/4" piece of foam for shadowing. - All foam and ABS plastic is die cut for a perfect fit. Rounded corners, hand hole cutouts, wheel cutouts. - Black foam is 2lb black Polyethylene. - Red ABS is a very hard plastic. Will make each tool tray very firm. Trace out your tools on each layer of foam. Cut foam around your tools Laminate foam to ABS.(Gorilla glue will work great - not included). Once done, should have a very firm tool tray, with shadowing.