Wingu is an open half-circle brass ring with a hand-hammered surface; the curved arc sits on the finger like a single bold sweep, the textured finish catching light from every angle. Also described as a hammered open arc ring or a hammered statement ring. The form is pressed into sand and filled with liquid brass, a casting process old enough to predate most jewelry traditions, and one that guarantees no two pieces match exactly.A nano ceramic e-coat over solid recycled brass delivers superior durability and resistance to water, sweat, and tarnishing. You wear the protection, you don't see it.Product Details Material: Solid recycled brass with nano ceramic e-coat Tarnish-resistant, water-resistant, hypoallergenic, nickel-free Ethically handcrafted by Fair Trade artisans Wingu is the Swahili word for cloud, present, shifting, never quite the same shape twice. SKU: JR017A