The Porta Brace PB-1620ICO interior case is designed to replace the interior of a Pelican 1620 series case. The PB hard case models ending in "ICO" are replacements and upgrades for the foam interior, intended for interior use only. When the foam wears out, use the ICO to improve performance. It includes pouches, cushions, and divider boards that offer you greater flexibility in configuring your ever-changing equipment. ICOs can even be used with many competing brands of shipping cases whose foam interiors have worn out.