Hammond 1591SSGY Grey ABS Plastic Project Box -- Inches (4.3" x 3.2" x 1.6") mm (110mm x 82mm x 40mm) Gray ABS Plastic Multipurpose Enclosure Inches (4.3" x 3.2" x 1.6") mm (110mm x 82mm x 40mm) Integral card guides accept 1.5 mm (0.062") P.C. cards. Designed to meet IP54