Grooved Engrave Design: There is a clear straight groove in the centre of the ring for all inlay crafts, widely used for inlaying wood, opal, pearl, meteorite, metal, gemstones, rhinestones and so on.Package Includes: You will receive 16pcs rings in rose gold. This solid fluted ring has an inside diameter of 16/17/18/19/20/21/22mm. It is available in a variety of different sizes, each with different benefits.High Quality Materials: These grooved finger rings are made of high quality titanium steel material, not easy to rust and fade, can be used for a long time. The weight is suitable, ensuring comfortable wear.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.Perfect Gift: DIY some special crafts and rings for both men and women, you can present it to your lover, friends or family members, they will be so happy to receive this lovely adornment.