These are exactly what you would expect in a sheet protector. I will add that becasue of the heavier plastic they offer a little more protection than the cheapest line. Also because they're heavier they a couple of additional sheets. The cheaper line falls apart if you put only a few extra sheets.
I gave important dates of family members to my children so they would have them. I should have sheets that were not attached that is my fault! The pages themselves are perfect.
I use this to keep my programs together at work. I absolutely love having everything together in one bound packet! The only downside is the way the corners are cut a full 8.5 x 11 sheet of paper pokes out the edges of the plastic and can get folded over. Not too big of a deal and manageable.
Honestly I was looking for thin super clear individual plastic covers for my artwork. But this zip closed heavier plastic opaque item with a plastic zip closure served as a holder and true element protector. So I am glad I got it. In case I didn't review the right item I also bought a binded set of sheet covers also an interesting product which holds together a group of clear sheets - anther interesting .product.
I liked these because they were very durable and strong. The only thing was that I was actually unable to find the sheets that were separated rather than these being more like a booklet but overall it was fine!