BUYGOO 20Pcs 3 Ring Metal Loose Leaf Binders Book Rings Snap Split Hinged with 20 mm Inner Diameter for DIY Travel Diary, Photo Album, Binding Spines Combs Durable to use: The ring metal loose leaf binder is waterproof and rust-proof and has long lifespan for you to use. Bring convenience to life: These binders book rings allow you to turn pages of notebooks easily and no longer to worry about the notebook would broke after you split one page. Specifications: Size: total size is 4 x 2.5 cm 1.57 x 0.98 inch, inner diameter is 2 cm 0.787 inch Material: multi-layer nickel-plated stainless steel Color: Silver Package includes: 20 x Loose leaf binders book rings Warm reminder: These loose leaf binders are small parts, please keep it away from little kids under 3 years old. We try our best to show the color of the products through the pictures, but due to different computer monitor resolution and other issues, there will be some gaps, please take the actual object as the standard, thank you for your understanding.