Men's Black Groove Wedding Ring Band - Grooved Black Wedding Ring For Guys - Wedding Ring For Him This ring has a dome design and is a comfort fit band. This band is black powder-coated 316L steel. The outer band has step edges and a black center groove. The base metal is hypoallergenic 316L surgical stainless steel. Will not tarnish or turn your finger green. Available in sizes - 8mm - 6, 7, 8, 9, 10, 11, 12, 13 Includes a black ring box. High quality and affordable.