It mixes the pre-workout well and the protein shakes
This is best shaker cup I have used. Other one do not completely blend it up this one does.
very very good shaker ,i like it and until now is hasnt slipped my protein
The bottle is of a good build quality but has a tendency to not be tighten enough so it leaks a little don't know if all do that or if it was just the one I received overall good shaker cup...