A high-quality black ABS plastic two-part instrument case with matching front & back panels. The two parts are held together by four recessed screws & are tongued & grooved to make the box rigid when assembled. Both parts have six pillars 4mm high for fixing PCBs & ventilation grills. Finished in matt mottled black. Internal size 170 x 122 x 50mm. External size 175 x 130 x 58mm.