These carbon-impregnated tote boxes are injection-molded to provide strong rigid sidewalls, a neat smooth appearance, and fine details. Volume resistivity of 200 ohm-cm., plus a wall thickness of 1/8", ensures that these tote boxes are static shields (provided covers are installed) and meet EIA-541 requirements. Each box stacks securely in he other for efficient storage. Dividers are used to accommodate various sizes of circuit boards by slipping easily into the molded side slots of the tote box. They lock together so they may be pulled completely out of tote box after assembly without coming apart. Insert and snap-on covers are used to complete a Faraday-like cage, protect products from physical damage, and keep dust out.