DEMONIO | Green Aluminum Ring Blue Offset GrooveDEMONIO Tungsten Black Brushed Blue Offset Groove and Green Inside Aluminum Ring 8MM Quality design is what defines this ring. A masculine piece that will be a constant source of pride. We use only the finest grade tungsten carbide, which is six times harder than titanium, for this ring. This ring has been meticulously designed to fit the contours of your hand and come with an easy wear comfort fit interior. We offer a Lifetime Replacement and Sizing