Could not use these. Virtually all of the sheet protectors were fused at the top preventing me from using them. Out of the 50 protectors over 45 were fused together. Even using a knife I could not open up some of the protectors. Returned to store for credit. Other reviewers saying the protectors are too narrow to properly fit the paper are correct. You wind up crinkling the paper trying to get it into the protector.
This is so weird. I've bought this product in the past and been happy with my purchase. But this time the plastic sheet protectors won't open! They are top-loading but they're manufactured incorrectly and are still sealed at the top and they cannot be used at all. I'd already discarded the packaging before I realized there is a problem -- who would think sheet protectors wouldn't actually function? -- so I'm unable to return the purchase.