Fangrui Product Details Product Attributes: Package Includes 10 Parts For Metal 3-ring Binder Mechanism, Measures 8 Inches In Length; Hole Diameter Is 0.8 Inches; Distance Between Holes: 2.64 Inches High Quality Material: Made Of High-quality Metal, Made Of High-quality Stainless Steel Material, Using Electroplating Process, Corrosion-resistant And Durable, It Will Be A Long-term Use For Notebook Binder Durable And Sturdy: Suitable For A5 Sized Loose Leaf Notebooks Or Other A5 Sized Plans With Broken Ring Binding Mechanisms. It Is Sturdy And Will Be The Long-term Use Of Notebook Binder Easy To Use: When You Need To Add Or Delete Pages, You Can Easily Open And Close Them, Making Them Easy To Use And Very Suitable For Organizing Projects, Documents, Etc Widely Used: The Binding Mechanism Is Spiral And Easy To , Making It Easy To Your Planner, Junior, And More, Suitable For Office, School, Home And Many Other Occasions L: 206mm/8inch W: 20mm/0.8inch 2 Holes Distance: 67mm/2.64inch Hole: 20mm/0.8inch Col