Excellent product...ignore the other review.
I have been using these for several years and was a bit disappointed when they were temporarily removed from the market for a while a couple of years ago. These work well and exactly as advertised. Ignore the one star review...she is reviewing the shipping, not the actual item.  I do not use softeners in the washer and do get close to the advertised 30 washes from them, so they are cost effective.  I use the disposable Shout Color Catchers for clothes that I know are going to run, since I'm a bit apprehensive about throwing one of these after it is colored from absorbing a lot of dye in with lighter color clothing.
Rating: 5 stars