The picture shows the ring width is 10mm Rings Width:4MM 6MM 8MM 10MM 12MM(If you want a width that is not in the options, please contact customer service, we will reply within 12 hours.) Us Size:5/5.5/6/6.5/7/7.5/8/8.5/9/9.5/ 10/10.5/11/11.5/12/12.5/13/13.5/14/14.5/15 Note: the character of the inside ring is "Tungsten carbide", which is deleted as default. If you stick to have it engraved on "tungsten carbide" inside of ring, please tell me and email to us when you have ordered. Women Or Men's Tungsten Carbide Wedding Band Rings,Multi Triquetra Celtic Knot Tungsten Ring - Black With Laser Etched Irish Trinity Design With Mens And Womens For 4MM 6MM 8MM 10MM Tungsten carbide is ranked second hardest next to diamond on the Mohs scale, diamond being a 10 followed by Tungsten carbide as 9. Tungsten material does not cause irritation on the skin. Due to the Hardness of Tungsten carbide, Tungsten ring may be laser engraved, but CANNOT be engraved by hand. They CANNOT be stretched.