The Black Magic is similar to a “miller table” and a slate or chalkboard table. The difference is the type of material used -- the Black Magic material creates a positive static grip of contact with the gold particles that keep the gold from being swept off or down the table. The 33 inch length of the table allows an ample amount of time for the gold particles to settle and grip onto the proprietary neoprene rubber matting, and the narrow 8 inch width allows for a controlled uniform flow of water. With the proper water flow, the table allows you to recover even the smallest particles of gold. For best results, classify material to 20 mesh. The better you classify, the better it works! Great way to get gold out of that pesky black sand. The original Black Magic sluice is the industry leading concentrate cleanup machine for fine gold recovery. It out performs any other type of finishing machine of its type. 36” long x 8” wide x 1” Black Magic sluice comes with a squeegee, 500 GPH pump, alligator clips, hose, water control valve.  Made in the USA.