This 8mm ring set is made of stainless steel. which is durable. hypoallergenic and not easily deformed. The inner surface of the ring adopts high-polished inner surface. which fits smoothly and comfortably; the electroplating effect is good. and the color retention is long-lasting. This ring consists of 5 minimalist silver and black rings. ranging from size 7 to size 10. Comfortable and fit to wear. Our stainless steel ring set is an ideal gift for women. men. girlfriends. boyfriends. lovers. couples. girls. boys. etc. Suitable for birthday. Valentine's Day. Christmas. anniversary. etc.