Extend the working life of your hearing protection with 3M™ PELTOR™ Bull’s Eye™ Earmuff Hygiene Kit.3M recommends replacing earmuff cushions and foam inserts every 6 months or sooner if they are damaged. Our Bullseye Hygiene kit includes green replacement ear cushions and foam liners for the 3M™ PELTOR™ Bull’s Eye™ Earmuffs.Quick and simple to use, you can replace our cushions to maintain the comfort you deserve and the head seal you need for proper attenuation during your hunting and shooting.