Made to support track riders who use both tear-off strips and Pinlock insert lenses. The Pinlock Tear Off Pins functions as a 2 in one system that accommodates tear off strips on the outside and keeps the Pinlock insert lens secure on the inside of the helmet face shield. Just like the Three Component Pin system, the tension of the Pinlock insert lens can be adjusted by turning the screw on the outer part of Tear Off Pin.