Hammond 1591ESGY Grey ABS Plastic Project Box -- Inches (7.5" x 4.3" x 2.2") mm (190mm x 109mm x 58mm) Gray ABS Plastic Multipurpose Enclosure Inches (7.5" x 4.3" x 2.2") mm (190mm x 109mm x 58mm) Integral card guides accept 1.5 mm (0.062") P.C. cards. Designed to meet IP54