1 convoluted lid foam - 21.51" x 16.54" x 2.00" 2 middle Pluck - 21.51" x 16.54" x 2.38"(approx) 1 flat bottom pad - 21.51" x 16.54" x 1.00"(approx) Same exact material as the org. Pelican 1600 foam set.