With their practical design, these metal rings are suitable for binding flashcards, index cards, and other educational materials. They provide a reliable way to keep your study tools organized, while their construction ensures they can withstand frequent handling without losing their shape or functionality. Features -Color:Silver -Material:Stainless steel -Size(outer diameter):3.00X3.00X0.25cm/1.18X1.18X0.10in -Size(inner diameter):2.50X2.50X0.25cm/0.98X0.98X0.10in -Quick binding: loose leaf ring simplify your document paper management and boost efficiency with these binder rings -Versatile applications: suitable for scrapbooks, index cards, and other uses, accommodating various needs -Reliable durability: binder rings made from high strength metal, ensuring they withstand regular use -Simple to use: effortlessly open and close to add or remove items, offering great convenience -Chic design: binding rings are functional yet stylish, adding a to your office supplies Package list: 20 x binder rings