This set includes 4pcs of Stainless Steel Oval Ring Settings, designed for 18 25mm blank cabochon trays and epoxy jewelry crafting. Each ring is adjustable with an inner diameter of 18mm and comes in various shapes and sizes: round (10mm, 12mm, 14mm, 18mm, 20mm, 25mm), square (10mm, 12mm, 16mm, 18mm, 25mm), and oval (13x18mm, 18x25mm). Please note that there may be a slight size difference due to manual measurement. These rings are available in steel and gold colors and the color may vary slightly due to individual monitor calibration. 1mm equals 0.03937 inches and 1cm equals 0.3937 inches. As a product expert, I highly recommend this set for DIY bezel jewelry making projects.
