SLUICE FOX 58″ Modular sluice box system is expandable and contractible to match each prospecting environment. Includes 13.” Speed Feed Flare which is capable of loading most standard classifiers directly onto the mouth of the sluice. (Compatible with Sluice Fox and SE Large Classifiers). An essential mining kit component for the serious Gold Rush enthusiast! Ideal for searching, finding, and collecting GOLD.