Pelican 1650 Upgraded foam set 6 piece foam set. 1 convoluted lid foam. 4 middle pluck pieces = more design options 1 flat bottom pad. 1 convoluted lid foam - 28.57" x 17.52" x 1.75" 4 middle pluck - 28.57" x 17.52" x 1.875"(approx) 1 flat bottom pad - 28.00" x 17.00" x 1.00"(approx) Same exact material as the org. Pelican 1650 foam set.