I love the clear sleeve on the front. It's great for putting my class syllabus list in there for easy access. Both the front and back covers have a 1/4 (like most binders have) and a 3/4 sleeve. The 3/4 works great at holding loose papers in place and they don't fall out when you open the binder. The 1/4 sleeve is good for putting shorter pieces of paper (I like to put my study note index cards there). If you try to put a full size sheet of paper there it tends to fall out when you open the binder. The D-rings make it so much easier to turn pages and they lay nice and flat. The 1-1/2 inch size is perfect for holding all my class notes throughout a semester.
The title says it all - this is a heavy duty green binder. This is substantially haavier duty than the standard binders and takes a lot of wear and tear. The rings are open and close smoothly.
We purchased the 1 1/2" Staples Heavy Duty View Binders with D-Rings for our office. They work very well. We are able to fill these very full of items and never have any problems opening or closing them. And they come in many colors which makes it nice to color-code what we have in the binders sort of an easy filing system. They are definitely a binder that we will purchase again and again for our office. They are easy to use and look very professional. Thanks to Staples for making such great products.