Three Keys Jewelry 8mm Mens Tungsten Wedding Ring Blue Double Grooved Wedding Band Engagement Ring Material: Genuine Tungsten Carbide - Scratch Proof (Pls check correct ring size in 6th pic) Material: Genuine Tungsten Carbide & Nikle Free & Scratch Proof & Antiallergic; Ring Width: 8mm; Ring Thickness: 2.4mm; Comfort Fit; Idea Partner for Hunters, Fishermen and Outdoor Fans Craft: Silver & Plat Center & Beveled Edge & Laser Female/Male Sign; Comes with Elegant Free Ring Box. Perfect Gift for Husband, Fiance, Father's Day, to Be Worn as a Wedding Band or Promise Ring for Men or Women