This hygiene kit contains two replacement sealing rings and two replacement muffler pads, designed to extend the life of your ear defenders and ensure optimal function and hygiene. The rings and pads are easy to replace. This kit is compatible with the 3M™ Peltor™ X2A and X2P3E ear defenders, making it simple and easy to install. It helps keep your headset clean and fresh, prolonging its lifetime. The kit provides effective protection from loud noises and is comfortable for extended periods of use.