The hammered surface creates highs and lows to catch the light and create a truly artistic finish. An elegantly handcrafted trough sink in sparkling stainless steel. Because they are crafted by hand, each sink slightly different than the other. Designed so it can be over or under-mounted. This sink will naturally oxidize if left untreated but a quick polish will bring back its luster! Uses a standard lavatory drain 1.5". Slight variations may exist up to 0.25".