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. Stainless Steel Material: Made of high-quality stainless steel. Stainless steel jewelry is rust proof,discoloration, , and won't make your fingers uncomfortable. It has a lot of service life, so don't worry about its quality Unique Design: The 3-groove ring is different from other styles in the market, and you can add more luster to the ring according to your preferences. A unique ring gift will bring you joy, suitable for any occasion Suitable Size: about 18.1~18.7mm inner diameter, 8mm wide, groove: 1.5~2x1.25mm, 5pcsThis 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 DIY Your Ring : This simple ring is very beautiful. You can customize it to give it to the person you like. You can choose text customization inspirational wordsIt's a great gift for any other occasion.You can customize it to give it to the person you like