Save time and improve your gold recovery with this 2 mesh classifier sieve with approximately 2″ openings. These sieves are used for sizing material down before processing with a sluice box or gold pan and hold more volume than shallower models. You can stack various mesh grades together for multi-tiered classification. The sieve conveniently fits into the top of most 5-gallon buckets and is constructed of high-impact plastic and stainless steel mesh.