This is a Howard Leight Ear Plug known as the SmartFit, model R-01520.
These plugs offer maximum comfort for secure" comprehensive hearing protection. Patented Conforming Material Technology uses body heat to custom-match the contour of the wearer's ear canal. Designed to fit most ear canal sizes.
Features:
Noise Reduction Rating 25 dB
One Size Fits Most
Conforming Material Technology
