These "finger savers" as I call them force your follower down when loading the magazine. It saves your finger from having to hold the annoying follower down while you load the magazine. Simply push this piece down along the follower and it will help you load your PP2000 magazines much easier. Unfortunately a traditional speedloader like an Odin adapter won't work very well due to the strong springs present in these mags (Already tried to design one.) Made out of heat proof material so it won't melt in a car or gear bag.