Black Tungsten Carbide Ring with Koa Wood Inlay (8mm width, Black IP, Beveled Edge)

Black Tungsten Carbide Ring with Hawaiian Koa Wood Inlay (8mm width, black IP, beveled edge) This black tungsten ring features a Hawaiian koa wood inlaid. Brushed and polished finished the edges and crafted of cobalt-free tungsten carbide with black IP (ion plating), the ring is made for comfort fit. Scratch-resistant and water proof, tungsten is four times harder than titanium and 10 times harder than silver / gold. This koa wood tungsten ring is also cobalt and nickel free so it is hypoallergenic,...