Tear Off Post Kit for Zamp Racing Helmets. It should be noted that this kit will work for a variety of helmets, not just Zamp!
The kit comes as pictured, with (2) posts and screws to thread into pre-drilled holes in the Zamp Visor.
Note that the screw areas are off-center, which allows the tightening of the screws and the tear offs as the tear off posts are rotated.