The Black Magic Sluice is a 36″x8″x1″ concentrate cleanup machine for fine gold recovery with a 500 GPH pump and accessories. Its proprietary neoprene rubber matting creates a positive static grip to retain gold particles and its 26″ length and 8″ width allow for efficient flow and settlement. Operates on a 12V battery (not included) and made in the USA. Ideal for removing gold from black sand.