The Gold Cube consists of stacking trays made of indestructible polyethylene thick as a cutting board. 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. So exciting to actually see your fine gold creeping down the slick plate! Gold, the heaviest element in the slurry, will be the last to reach the trough. G-Force Separator: The slurry then falls into a gated trough & will be forced under water. Then centrifugal force will force the gold to the outer edge of the rounded trough. The slurry will then exit the trough on the opposite side of the gate. After exiting the gated trough, the slurry is forced to stand up & form a column. The column actively stacks the particles by specific gravity. Lighter, faster moving particles race past the heavier particles & exit the column first. The Gold Cube’s forced gravitational, centrifugal & column effect is “the G-Force.” Vortex Matting: The Cube’s vortex matting works because water flow interacts with a combination of very small pillar walls & cavities-about 7,056 of them per mat. Like a tornado, the spinning creates a low pressure zone in the center of each cavity. Passing gold will be trapped & forced to the bottom of the vortexes & held in place by the lighter material. As gold-laden material is introduced into each vortex mat, it will displace & replace the lighter material. This will create about a cup of super concentrates at clean-up. Amazing! The 5 inch diameter trommel that goes on top of the Gold Cube spins and washes your material. 16 inch long barrel x 5 inch diameter, classifying screen is 3/16 inch. TROMMEL SHIPS IN SEPARATE BOX FROM GOLD CUBE!