The SKB US Series line of roto-molded 19" stackable rack cases have a tough roto-molded shell. Featuring front and rear lids, recessed heavy-duty twist latches, molded in handles, shock absorbing rubber feet and the Roto-X pattern for secure stacking. The unique molded-in unbendable valance and steel threaded rails with self tapping screws make the US Series racks durable and convenient to use.