This Ceramic White 6MM Dome Polished Wedding Band is ceramic. Approximate weight is 4.76 grams. This item comes in a size 5.5. Width is 6 MM in the widest part. Comes in a beautiful gift box. Images are for illustration purposes only. This is not the same material as your 'grandma's' ceramic. This high-tech ceramic is an inorganic, non-metallic solid that is available in black, white and pink as well as other colors. Ceramic jewelry is valued for its scratch resistance, heat resistance, hypo-allergenic and fade resistant properties. Ceramic jewelry has the same basic hardness and durability as Tungsten and both have a greater hardness than Titanium. You can clean this item using mild soap and water or a lint free polishing cloth is recommended.