12pcs Stainless Steel Rings: You will receive 12 stainless steel rings. With a black velvet bag, it is suitable for gift giving and self use. The color is very classic and fashionable. It is easy to match your various clothes and is very suitable for attending formal occasions. Easy to Use: The ring core blanks are designed with groove settings for inlay crafts. You can inlay curb chain, stones, rhinestone, diamond, crushed opal, wood, chip gemstones etc to DIY personalized finger rings. Suitable Size: about US Size 12,about 22mm inner diameter, 8mm thickThis simple ring can not worry about the unsuitable problem, The right width is very suitable for your DIY, and you can enjoy the joy of DIY Meaningful Gifts: You can engrave names, sweet words or your love in the ring to make unique rings and send them as gifts to your lovers, friends or families to express your wish. They will be surprised and moved.