SCP-001 is a smooth, black, perfectly ellipsoidal (~15.1 cm x 15.4 cm x 16.5 cm) onyx gemstone with a mottled white pattern. Wrapped around its exterior, encompassing its equator and both poles, is a complex and layered fractal filigree of gold metal. The gold is sculpted into broad strokes at what is now usually agreed to be the lower or "south" pole of the object, but with increasing "latitude" the pattern becomes progressively more intricate. Near the "north" pole, also called the "lock."