W-δ233 resembles an oversized early industrial electrical lever switch with a deliberately old-fashioned, almost steampunk appearance. Its body consists of a broad rectangular plate of darkened metal fitted with exposed brass contacts, ceramic-like insulators, heavy fasteners, and a central lever. The plate is approximately 31 cm tall, 24 cm wide, and 4 cm thick. The lever projects roughly 17 cm from the face of the plate and terminates in a tapered grip approximately 12 cm long and 4.5 cm across at its widest point, large enough for an average adult hand to wrap around and pull comfortably.
The construction resembles antique high-current switching hardware, but its components do not correspond cleanly to any known electrical design. The lever has two stable positions conventionally treated as ON and OFF.