These are good quality 5-mil laminating pouches sized appropriately to contain a standard 4x6 inch index card or photo. This means of course that they're a little larger than 4x6 -- 6-1/4" x 4-1/2" to be exact. They worked well with my Swingline laminator and did the job I needed to do. I docked them one star because for some reason they're just a \tiny\ bit narrower than everybody else's 4x6 pouches -- which are tuypically 4-5/16". As I purchased these in the middle of a job I consequently had the choice of either redoing everything already completed using these new pouches or else trimming all the previous work. Not a big deal but still annoying. Had I started the job with these I never would have noticed the difference in size and would have rated them 5 stars.
I have leadership development cards that I wanted to preserve for my clients. It was exactly the right size. Now I use them for many years without worrying about the cards wearing out or getting spills on them.