3M PELTOR X5 Ear Muffs Replacement Cushions and Liners Designed Only for PELTOR X5 Series Over-the-Head Ear Muffs X5A or Hard Hat Attachment X5P3E, Noise Protection, 1 Pair/Pack: Ear Protection Equipment Accessories:
3M Gel Hearing Protector Replacement Ear Cushion Hygiene Kit, 1 pair, works with WorkTunes (90543), Peltor Sport (97040, 97041, 97042, TAC300, TAC500, 90565 and 90566) - - Amazon.com
3M Peltor Hygiene Kit HY54, for 3M Peltor Optime III earmuffs, 1 set - Gehoerschutz-Versand.de