This is a Tungsten steel product with a silver colored finish (not containing actual silver). Hypoallergenic. Due to the Hardness of Tungsten carbide, Tungsten rings may be laser engraved, but CANNOT be engraved by hand. They CANNOT be stretched. Our Tungsten Carbide rings are scratch resistant and keep their shine. Unisex Tungsten Wedding Ring Bands - Many Sizes for Men or Unisex for Women (Adults) Ring Blingers Brand - Tungsten Rings for Birthday, Anniversary, Father's Day, Valentine's Day, Christmas Gift, Wedding, etc. High quality Wedding Ring Band 8mm for men or women. This beautiful silver tungsten carbide ring with green and silver color Celtic knot weave inlay design is approx. 8MM. Unisex or Men's Wedding Rings Silver and Green. High quality Wedding Ring Band 6mm for men or unisex for women. This beautiful silver tungsten carbide ring with green and silver color Celtic knot weave inlay design is approx. 8MM in width (depending upon size). Unisex or Mens Wedding Rings Silver and Green. Unisex or Women's Tungsten carbide Wedding ring bands / Celtic Wedding ring bands Silver and Green. This is a Tungsten steel product with a silver colored finish (not containing actual silver). Hypoallergenic. Due to the Hardness of Tungsten carbide, Tungsten rings may be laser engraved, but CANNOT be engraved by hand. They CANNOT be stretched. Our Tungsten Carbide rings are scratch resistant and keep their shine.