Rustic hand-forged hammered brass and stainless steel thin band. Brass will become less shiny over time. Brass is a copper alloy and can stain adjacent fingers green. This ring is coated with Everbrite protectaclear, to help with these two issues. C464 (forgeable) brass alloy with 304 stainless liner. No soldering. The liner is held in place mechanically by flaring. Minimum bandwidth of about 4mm.