SOMEN TUNGSTEN 2mm 4mm 6mm Black/White Ceramic Rings for Men Women Comfort Fit Engagement Wedding Band Size 4-12 2mm 4mm and 6mm for couples who desire a matching set, pure high polish black color 2mm 4mm 6mm Black/White Ceramic Rings for Men Women Comfort Fit Engagement Wedding Band Size 4-12. Non-metallic material, if you are easy allergic, ceramic band is your best choice Best gift for wedding band, engagement ring and anniversary ring Quality Warranty - 60 days money back or item exchange