Material: These rings are made of high quality stainless steel with high polished inner surface, grooved in the center, strong and durable, providing you with a comfortable wearing experience Easy to Use:The ring has blank grooves, perfect for adding your own setting materials such as crushed crystals, mini pearls, rhinestones, resin, sequins, different styles to show your unique personality. 8 Sizes :You will receive 8pcs stainless steel rings,in size 5/6/8/9/10/11/13/14,2pcs for each size.you can choose different size to match with your daily outfits, giving people different visual experience. Black Ring: Total of 16 pcs grooved ring, different sizes, different colors from the market, black classic atmosphere, elegant and timeless, casually matched with daily clothes The Best Gift: the best gift for men and women, lovers and mothers. The best birthday gift ever, Christmas, Mother's Day, Valentine's Day, can be used as a perfect gift for any occasion