A close up of a metal gear with a hole in the middle

There is a metal gear，There is a small red ball inside, gear wheel, Mechanical gears, gear wheel, Complex gears and lenses, metal gears, Planetary gears, mechanical engineering, precision, cogs and gears, industrial machinery, gear wheel, Advanced technology, mechanicalparts, mechanical implants, Giant interlocking gear gears, Gears and lights, Intricate gear details, High precision

(nsfw:1.5),