Includes 4 pieces: Convolute for the lid, 2.125" thick top base layer, 1.125" thick 2nd base layer, & 1.125" thick flat pad, Pelican case not included Foam fits perfectly into a Pelican Vault V730 case right out of the box Case Club's Closed Cell Military Grade Polyethylene foam will not absorb moisture Customize your own foam insert easily with long lasting results (hint: extendable razor blades work well for this)