The Shook gets attach to the bottom of the proton gun on the gun track.
the shook is how they hung the proton gun from their belt.
since they were all bent for movies, no one shook is alike on the movie guns. so theres not a single style for gb1 or gb2, but also pictured is a picture we took with our shooks, next to print out of the bottoms 3 diffrent hero movie guns.
(note: this is just a bent Shook, there's not anything special about it, we offer them because some people have trouble bending them)