Electrostatic conductive utility boxes with foam teknis bcp23013031f these 230 x 130 x 31mm black polyproylene boxes are electrically conductive and form a faraday cage around sensitive components and small assemblies the boxes are ruggedly constructed and give excellent physical protection making them ideal for the transportation of esd sensitive components teknis bcp23013031f esd conductive utility box 230 x 130 x 31mm with foam