What You Will Get -- You will receive 4sets notebook ring binders in total, suitable for many occasions to use, such as office, school and home, they can be applied to sort out small documents and will bring a lot of convenience to your daily life. 2 Sizes -- Using 4-ring and 6-ring design to make your book clip ring lock firmly, sturdy and not easy to fall off. 4-ring binder hinged clamp: about 11.5x0.78x0.94", hole: 0.2x0.16", 2sets; 6-ring Binder Hinged Clamp: about 7.12x0.78x0.94", hole: 0.16", 2sets. Shiny & Not Easy to Fade -- These metal loose-leaf binder rings are made of high-quality carbon Steel, won't break easily, have a smooth surface and bright color, and will last you a long time. Easy to Open and Close -- Well design metal loose leaf ring can be split into 2 halves and connected with a metal swivel rivet tightly, ensuring that the book binder is locked safely and tightly to prevent the paper from being scattered or loose. Wide Application -- These metal loose leaf binders can be expanded and closed easily, flexible for you to DIY travel diary, photo album, scrap booking, loose-leaf notebook and graduation alumni book.