For use with V3 Passive Ear Muffs. Features: Includes one pair of replacement ear cushions, one pair of foam inserts .Ear cushions should be replaced twice a year, or when the cushion shows signs of damage Specs: Hygiene Kit For V3 Ear Muffs- Includes 1 Pair Ear Cushions & Foam Inserts Case Quantity: 200 Case Length: 62 Case Width: 60 Case Height: 54