TrustFit Trak Detectable Reusable Corded Foam Earplugs, One Size Fits Most, 29 dB NRR, Blue, 1,000/CartonHoward Leight TrustFit Trak reusable push in metal detectable earplugs are designed with an ergonomic stem and dimpled foam tip so they are easy to fully insert and remove. Pod shaped earplugs have a large, ball shaped foam end that fills the ear canal. A paddle grip pushes the pod into place so there's no need to touch or roll the earplug, making it a good choice for dirty environments. An extension of the TrustFit Family when contamination is