Deco Items -Split Key Rings Highlights Generic Brand Split Key Rings Description: 20 Pieces Brass Flat Round Split Key Rings Stands Securely Closed and Provides a Secure Fastening Light, strong, strong, durable and portable Material: brass Easy and convenient to use and carry Good for binding clasps, charms, links and other ornaments Wide variety of applications: suitable for organizing your house keys, car keys, hanging cards , DIY and craft projects, etc. Size Chart: 15mm Key Rings: Outer Diameter: Approx. 15mm / 0.59inch Inner diameter: approx. 12 mm / 0.47 inch 20mm key rings: Outer diameter: approx. 20mm / 0.79inch Inner Diameter: Approx. 17mm / 0.67 inch Package includes: 10 pieces 15mm keychains 10 pieces 20mm keychains Note: Please allow slight difference due to manual measurement. The color may be slightly different since different monitor. THANKS!