This is an accessory clasp. Pass the bar through the ring and use it. Copper means copper, and it has a gentle reddish color with low saturation and an elegant shine. The copper color and silver color plating are layered and given an antique finish, giving it a vintage feel that blends well with the skin. Recommended for simple necklaces and bracelets, paired with chains and metal fittings of the same plated color.