Not all are the same.
The "rosin bag" is the plastic envelope with the sticky white stuff,
is for more grip.(this stuff gunks up the finger holes, if you dont clean them.)
the others are mislabeled or miscalled as rosin bags most of time.
like the "dry bag" the ones in the cloth bag. With the dry powder
stuff is for drying a sweaty hand.(this is the only one you should get)
Then you have the "hand conditioner" which is kind like antiperspirant for the hand.
Then you have the "slide bags" like easy slide. you use this on your shoe to
make you slide more.
There is also a slide you use on your thumb/fingers to
release real easy.
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Aloarjr810
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Click For My Grip