A heavy dungeon lever-and-gear mechanism built into a block of riveted stone. A long timber pull-arm rises at an angle from an iron pivot, driving a large brass toothed gear, with taut spiked chains anchored across the studded stone base.

The grimy metalwork, exposed cog, and menacing chains give it the look of a trap trigger or portcullis winch waiting to be sprung.

A great interactive scenic piece for fantasy tabletop dungeons and lairs, dark dwarven or industrial dioramas, and wargame boards needing a mechanical set-piece or objective.