Built for tough and versatile large equipment protection, the Pelican 0550 Transport Case is designed to offer more than 20,000 cubic inches of usable storage space. Its open cell-core wall polymer construction protects sensitive equipment from severe conditions, and a honey-comb-style reinforced lid provides extra support for stacking multiple cases. Additional features include a removable 4 x 6-inch clear identification document holder and a lid equipped with a polymer O-ring for a dust- and water-resistant seal. Heavy-duty caster wheels and detachable pallet risers are optional. The 0550 Transport Case is backed by the Pelican Products lifetime guarantee.