They are completely clear and sturdy enough to wipe clean. They load easy with 24 bond paper. I have bought them for years at Staples. They are my go-to sheet protectors.
I buy these to put together my binders of festival designs for my henna business every year. It's well worth it to spend the extra on these vs the cheap ones. The heavy ones are too heavy and add obvious bulk to the binders. These are perfect though.