I've widened the neck hole as much as I can to fit as many brand
figures as possible, so the head will need blutac or milliput to set
it on properly.




If
you find that the head is too tight to get on your chosen figure,
don't force it, as it may split. The best option is shaving some of
the figure's neck away. 
Shown
on a Joytoy figure. 




Needs
primed and painted.




May
require further cleaning or modification. 




If
sanding, please wet sand. 




Thank
you for looking.