Thor (Chris Hemsworth) bust from Avengers for 3d print,you will get 2 different STL file for the head : high(1.027 mil point) ,and low (400 k point) decimated version.
File formats: STL,OBJ,ZTL.
Original height of the bust in zbrush 17.5 cm but you can scale it as you prefer.. ZTL file contains 2 subtool head and body (decimated)..