Package Includes: You will get 8 sets ring blanks trays kit, the package contains 8pcs blank rings in 2 different colors, each color of 4pcs. Enough quantity and different colors are sufficient to meet your jewelry making needs.Adjustable Ring Base Blanks: The square bezel tray is 17mm in diameter, and about 15mm in inner diameter as standard. The blank rings are adjustable to fit most sizes, so you don't have to worry about stocking up on multiple sizes.Sturdy and Durable Material: Our adjustable square ring comes with a flat base, made of stainless steel material, sturdy and durable, smooth in surface and will not easy to fade or scratch your finger when worn.Versatile Functions: These adjustable flat rings are ideal for making DIY jewelry crafts, such as cameo pendants, enamel charms, photo jewelry, resin crafts, custom jewelry and so on, try to find more possibilities about their using applications.Elegant Gifts: If you want to prepare small gifts for your family members, lover, colleagues, friends, these square base ring will be a suitable choice, and you can also DIY them into personalized finger metal rings with friends who love DIY crafting, to enjoy handmade fun together.