The Sharp R21AT medium duty microwave oven is packed with features. The body is stainless steel, both the exterior and the interior which has a 28 litre capacity. The controls are touch sensitive with 20 memory presets, 10 pre-programmed memory settings with a programme lock and 11 power settings. It also has a unique express defrost setting, 3 stage cooking and a repeat cook option. External dimensions are 30.9x52x40.6cm (12.1x20.5x16") and internally 21.1x35.1x37.2cm (8.3x13.8x14.6")