We've had to return 2 Staples® Better 3" 3 ring binders and now the 2 news binders are broke! The rings won't close at all. They broke within a week of buying.
3" binder purchased for a middle school student who uses it everyday to hold classwork for 5 different classes. Really liked it's flexibility and the plastic material that it is made of but the rubberized seam between the front cover and the spine began to rip after 2 months and the rings were beginning to close unevenly. Gets expensive if it has to be replaced every 3 months.
I use these binders to store and organize contact sheets of slides and negative and to archive the thousands of film negatives I've created over the years.
I purchased this heavy duty binder and after a month 2 of the 3 rings separated and will not close completely. The $5 binder has lasted me over a year I should have just stuck with those instead of trying to buy a heavy duty binder for [$]. Save your money!