This hygiene kit extends performance and lifetime of HP-M1 earmuffs. Each kit is individually packaged in a polybag for retail sale. Includes two replacement ear cushions and two foam inserts for use in HP-M1 Features snap-in cushion system for easy replacement Ear cushions and foam inserts are suggested to be replaced every six months from general use or otherwise replaced when damaged Earmuffs not included.
![Bullhead Safety Hearing Protection Hygiene/Replacement Kit for HP-M4 Earmuffs- 1 each, #HP-M4-RK Bullhead Safety Hearing Protection Hygiene/Replacement Kit for HP-M4 Earmuffs- 1 each, #HP-M4-RK](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/300241/421366/HP-M4-RK_W__27032.1640294040.png?c=2)