These are very sturdy and durable. And I love the way the opening is facing the ring hole side. They never have an issue of anything slipping out when handled with different sides up.
I would give it 5 stars but they are ever so slightly less clear compared to different page protectors that are being used along with these. So they work great and not a problem I would buy them again because they do serve their purpose and if I wouldn't have had the others ones to compare I wouldn't have noticed they were ever so slightly less clear.