Even for serious Gogos collectors, WHISTLERS are hard to come by. 
Figures that have a small hole on the plastic. These figures have factory faults which causes a hole in their plastic and because of this they were categorized as whistlers in the old Crazy Bones guide books.
Highly collectible. Many Gogo's on eBay are classified incorrectly. Feel free to reach out with any questions you have.
Please look at pictures before purchasing
I'm happy to answer questions or take specific pictures
Comes well packed