Get 100 pieces of metal bookbinding rings, perfect for DIY projects, opening curtain rings, book circles, movable metal clip rings, and curtain buckles. Book Ring Size: Each book ring has an inner diameter of 19 mm (0.75 inches) and an outer diameter of 23 mm (0.9 inches). This pack of 100 standard-sized rings meets all your small item editing needs. Easy to Use: The binding ring features two parts connected by a swivel rivet, making it incredibly simple to use. Just pull to open and squeeze to close. Strong and Durable: Crafted from nickel-plated metal, these rings are hard, sturdy, and close airtight, making them perfect for keeping loose items neatly organized in your books. Wide Application: These versatile rings are ideal for scrapbooks, loose-leaf notebooks, memo filing, photo albums, keychains, and sample holders. Easily link loose items together. What You Get: High-quality products and friendly customer service. Please don't hesitate to contact us if you have any questions; we will get back to you within one business day. Due to manual measurement, the products you receive may have slight dimensional errors. Due to different monitors, the products you receive may appear slightly different from the pictures. Actual delivery quantity: 100 pieces. 100% Satisfaction Guaranteed: Our customers are our priority. If you find any issues with the products after receiving them, such as damage or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory after-sales service.