Premium Material: Loose leaf rings are made of high-quality metal material, smooth surface and wear resistance. Sturdy and durable, not easy to deform. Easy To Use: No tools needed, just pull the hinged ring binder to open and squeeze it to close. Secure and easy to operate. Wide Application: Book rings are suitable for loose-leaf, album, scrapbook, flashcard, traffic light cards, memo filling, sample book, etc. Keep your items organized and avoid confusion or loss. Appropriate Size: The inner diameter of rings is 25mm. Small size can meet your different binding demand for small items. What You Get: Come with 120 pieces loose leaf binder rings. Enough quantities for your office, school and home use, and you can also share with others. Colour:silver Material:Metal Size:12 x 8.3 x 3.6 cm Package Contents: 120 x binder rings Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.