
The kit contains replacement sealing rings and foam inserts which can be replaced in a few easy steps.**
X Series X3 Earmuffs. It's a lightweight, low profile earmuff designed for protection against high level industrial noise and other loud sounds with a Noise Reduction Rating (NRR) of 28 dB. Class A. A newly designed spacer helps improve attenuation without the need for a larger cup or double cup.**