Tungsten Men's Wedding Bands Archer - Comfort Fit Ring, Matte Finish, Cobalt Free - Lifetime Warranty SAY I DO WITH THIS BEAUTIFULLY CRAFTED TUNGSTEN CARBIDE WEDDING BAND by Archer. THIS WEDDING RING comes complete with beveled edges and brushed metal for a modern look and feel. 8 MM COMFORT FIT TUNGSTEN WEDDING BANDS FOR HIM. Cobalt free and hypoallergenic. TUNGSTEN CARBIDE cannot be resized, so double check your ring size before ordering. LIFETIME WARRANTY! If you arent 100% satisfied we will take your ring back no questions asked.