I purchased standard sheet protectors and returned them for this reduced glare heavyweight version but still have to return the reduced glare ones.Bottom line is that all of the Staples sheet protectors have very visible streaking from the way they're manufactured. They just don't cut it on stage or in environments with lots of glare. I'm heading back to a trusted name brand.
I was in need of these heavy duty sheet protectors as I am storing some very old (almost antique) newspaper articles/clippings. These will help keep them from further tearing and crumbling.
Perform as advertised. Have used regular weight protectors in past; also satisfactory. Decision to pay more for heavy weight should depend on anticipated use.
These do a good job. Personally I would like a little thicker protector. Something I bit more sturdy. However these work well for their intended purpose.