Description: Vintage adjustable ring features filigree stamping flower setting, which is fit for 30 x 40 mm oval cabochon Simple blank design, suit to put the cabochons, jewelries, rhinestones on the top base Great DIY accessories for home jewelry making Perfect findings for making personalized jewelry Color: Vintage Bronze Material: Brass Blank inner diameter: Approx 30 x 40 mm / 1.18 x 1.58 inch Ring diameter: Approx 19mm / 0.7 inch Package Includes: 10 x ring bases Note: Since the size above is measured by hand, the size of the actual item you received could be slightly different from the size above