SKB Roto Rack Rail Case 10 U, 19" Double Door Rack with 10 units, 45 cm interieor depth, plastic Chassis ( Polyethylen ), Roto-molded Linear Low Density Polyethylene, Threaded steel rack rails (rear rails optional), Interlocking X pattern for solid stackability, Front and rear full size lids, Recessed latches, Shock absorbing feet,