The Presto Power Pop is a microwave popcorn popper.  It uses regular popcorn and pops it in the microwave in its own self contained bowl.  It has these Presto PowerCup concentrators that come with the popper, and you are supposed to use them each time you pop popcorn.  The instructions say to replace them every 12-24 times you use them but they seem to last even longer than that, and I have yet to buy a new pack...I am not sure we will since it seems to almost as well without.  The concentrators are to reduce the "old maids" or the number of unpopped popcorn.  What I like best about it is...