Standard: 1 x 1mm steel rear panel with twist-locking catch; 1 x assembly kit. Cable Ducting: 1 x 1mm steel rear panel with twist-locking catch; 1 x 2mm steel door hinge bracket; 1 x 1.5mm steel frame for cable ducting with brush strip; 1 x 3 U frame for cable ducting for cabinet heights 16, 20, 38, 47 U; 1 x 4 U frame for cable ducting for cabinet heights 25, 34, 43 U; 1 x assembly kit; 1 x earthing kit.