Adjustable Ring Base -- The ring base can be enlarged or reduced to fit your finger. These are adjustable and fit most ring sizes, so you don't have to worry about sizing up or down. Sizes about the open cuff ring findings: 0.71 inch(1.8cm) inner diameter, 0.08 inch(0.2cm) wide, surface: 0.59x0.71 Inch(1.5x1.8cm), 1pc; Paper jewelry gift boxes: 1.77x1.77x1.18 inch(4.5x4.5x3cm), 1pcHigh Quality Material -- Our adjustable ring bases are made of high quality sterling silver, light weight, easy to carry, strong and shiny, delicate and beautiful, reusable, can stand the test of time, and are a decorative addition to any kind of jewelleryClaw Design -- You can wear these ring blanks directly or use them to DIY your own jewelry accessories, the unique claw design is also a fashion element that will make your overall look charming, elegant and beautifulDIY Ring Making -- You can add gemstones, cabochons, cameos, stamps, engravings, glue letters, logos, resin, or some small beads to the ring tray to create gorgeous rings or jewelryPerfect Gift -- This is a good gift for your boyfriends, girlfriends, fathers, bosses, coworkers as a gift for Christmas, Valentine's Day, Thanksgiving, Father's Day or anniversaries. It can improve your relationship and practice hands on skills