Thick and sturdy. I use them when homeschooling my children. I had previously purchased another more expensive brand, and found the price and quality of these to be much better. I will purchase again!

Bad product. Takes 1-5 minutes to open the top so you can insert paper. Dont buy these unless you have a lot of time to kill. I had a large project with a short deadline. I lost a lot of sleep fighting these protector sheets. Never buy these.

The "most helpful" negative review says these protectors are thinner than others' standard. I need to know where they are getting a better product than this, especially at the price, because they have a unicorn. I had "heavyweight" protectors left from my previous purchase from a big office "fasteners" store to compare, and these are noticeably thicker. Almost twice as thick by feel. They are also a bit wider, about 1/8" placed side by side, which translates into easier loading and more sheets per protector. The bad, if it's even relevant, is yes, they are hard to open the first time (but they all are). The second, third, fifth, twentieth time will be easy, and yes, you can expect to use these over and over and over because they are HEAVY. The best I've found and by far the best price.

These are impossible to work with. They are impossible to separate to put paper in.

Extremely hard to open. I am returning product. Previous

It was very thick but took alot of work to get each one to open to insert paper.