Eastop Unisex New Fashion Titanium Steel Refinement Inner Wall Lettering ring(Diameter:19.0mm) Material: 316L titanium steel, bright feel strong. Waterproof, rust never fade. Inner ring light smooth design, smooth don't blow hand We will check in each pass, make sure to avoid mistakes Please carefully controlled size chart before buying Thank you for taking time to visit my shop, hope can service for you,best wishes to you