C-o eight passivated stainless steel attenuators, 3, 6, 10, and 20 db nom, 50 ohms nom impedance, dc to 1 ghz, 1 to 12.4 ghz freq ranges, 1.03, 1.06, 1.10 max vswr, 0.01 to 0.05 db attenuation accuracy, male and female n type connectors, set is furnished in a compact walnut case 10.500 in. Lg, 7.000 in. W, 1.500 in. H o-a dim.