Designed to provide additional tool, equipment and storage space when a crossover toolbox is not enough.24" Underbody 1 Door Box30" Underbody 1 Door Box36" Underbody 1 Door Box36" Underbody 1 Door Box-BLK48" Underbody 1 Door Box60" Underbody 1 Door Box72" Underbody 2 Door Box96" Underbody 2 Door Box