First binder I have found in a long time that is sturdy and easy to open. Has inside pocket for easy access items and is nice and sturdy without the bendable cardboard.
Binders are used throughout our manufacturing plant for procedure manuals. The bright orange colour makes them easy to locate if they have not been replaced properly. They are easy to label. Very durable. We use them in the office for storage of project info files that are frequently accessed. The colour choices make it easy to colour code for different uses.
I have used many of these for my grandchildren's genealogy. I do two books per grandchild so that they will have both sides of the family and go back usually 8-10 generations each. The numerical dividers that fit this binder works perfectly.
I work at a school and needed to keep my papers organized. I love this binder because it is easier to grab a hold of and the rings are easy to open with very little effort.