I ended up returning this Staples 3" 3-Ring Better Binder Black (15125-CC) because the cover of the binder was so thin it just wasn't durable enough. I have a current 3" Staples 3-ring binder where the three rings aren't quite lining up and I need to manually adjust them with my hands but the cover is thicker so I decided to keep my old binder because of what I just stated. You need to improve the quality. It's probably made in China. I'd like you to consider making it in the United States and improve the quality. I'd be willing to pay more for it if it were higher in price so long if it is of higher quality and would last longer.
The cover was fine. But the rings were made of thicker metal than others too big for the holes in the pages I have to put in the binder. This is not the size of the ring itself (3" was good) it was the size/diameter of the metal itself. I then purchased an Avery product and it worked fine. This binder might work well for a different application that I had but didn't work for me.
The 3" binders have been a boon to my office! We currently use different colors for different projects and highly durable for constant use. Coupled with expandable binder pockets and dividers we are able to stay organized and uncluttered. These binders in all sizes are an office staple.