Feature: 1. Stainless Steel Material: Ring blanks are made of high quality stainless steel, which is strong and durable, not easy to discolor or rust, and not easy to break after repeated use. 2. Adjustable Size: Ring blanks are adjustable to fit most ring sizes, so you dont need to worry about fitting them out of place. 3. 20PCS:DIY rings contains 20 adjustable flat ring bases, in multiple packs, you can make as many rings as your everyday jewelry. 4. DIY Make: Adjustable ring blanks are suitable for home jewelry making and hobby, giving you more options for DIY craft projects. 5. Scope of Application: Adjustable ring blanks are approximately 8mm in diameter and are ideal for gluing buttons, beads or anything else to create unique rings. Specification: Item Type: Ring Blanks Material: Stainless Steel Specifications: 20 Pcs/Pack Film Size: Approx. 8mm (Measured by hand, there may be slight errors) Use: DIY Jewelry Accessories . Package List: 20 x Ring Blanks