3M PELTOR Metal Detectable Skull Screws Communications Eartip provides a communications eartip solution for applications where metal detectable PPE is required.3M PELTOR Metal Detectable Skull Screws Communications Eartip provides a communications eartip solution for applications where metal detectable PPE is required. For use with select in-ear 3M PELTOR Advanced Hearing Protectors. See advanced hearing protector user instructions for compatibility and NRR information.