This piece of Gold Mining Equipment is specially made to recover fine gold. Unique G-Force technology cleans and separates the gold. Gold Cube 3 Stack Deluxe includes 1 Slick Plate, 2 Separator Trays, Stand, Pump, Hose, Hose Adapters. Gold Cube processes tons of concentrates into mere ounces-- FAST! The Gold Cube can run a yard of material (classified down to 1/8 inch) in about 2 hours. You can also run half a ton of material through the Gold Cube before you have to stop for a clean up. The Gold Cube is made in the USA! Gold Cube 3 Stack Deluxe for fine gold recovery consists of stacking trays made of indestructible low density polyethylene that's as thick as a cutting board. The Gold Cube can retrieve your gold from the material you've gathered from rivers, beaches, black sand, etc. With a 12-volt battery (not included) you're ready to clean up your concentrates QUICKLY! The slick plate on the Gold Cube has a precisely controlled water flow that is designed to process very large amounts of 8 mesh and smaller material in a very short time. With controlled water flow, the slick plate turns aggregate material into a slurry, and the water flow forces the lighter particles ahead of the heavier material. Gold, the heaviest element in the slurry, will be the last to reach the trough. The slurry then falls into a gated trough and will be forced under water. Then centrifugal force will force the gold to the outer edge of the rounded trough. Gold Cube's vortex matting works because water flow interacts with a combination of very small pillar walls and cavities - about 7,056 of them per mat. Just like a tornado, the spinning creates a low pressure zone in the center of each cavity. Passing gold will be trapped and forced to the bottom of the vortexes and held in place by the lighter material. As gold-laden material is introduced into each vortex mat, it will displace and replace the lighter material. This will create about a cup of super concentrates at clean-up. Amazing!