This binder design is superb for heavy-duty daily school usage. The ridge of the binder is curved and reinforced making it very sturdy and rip-proof. The edge is not as sharp as other types safe for the kids and even making the school bags lasting longer too. The various color choice is another plus !
I bought these binders to provide equipment manuals to a customer. They liked them so much that they didn't want the binders provided by the project manager. The built-in pocket on the inside of the front cover is bonus. Great for holding CD's and Extra Keys for my application.