These binders are the best....I purchased them last year for both daughters school supplies.... normally with the other binders we would go through 2 or 3 each year.... didnt have to replace them at all last year...they were VERY durable - a little costly but worth it. bought 4 more this year due to different size requirements for school ....knowing I wont be replacing every other month is great.
Only drawback I can find with this product is that you must be careful to push all the pages to the right side of an open binder (binder open flat not rings open) before closing it. Othewise papers tend to collect between the rings and the front cover becoming worn in the process. With some care this is an excellent binder.