The Auto Field-Maintenance Unit is a compact, rectangular device with a sleek, metallic exterior, designed for durability in harsh space conditions. It features a series of small, glowing blue indicator lights along its edges, signaling operational status, and has a slightly textured surface for better grip. The unit includes a retractable tool arm and a small display screen for diagnostics, all housed within a robust, matte black casing with subtle orange hazard stripes for visibility.