For use with V1 & V2 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 V1 & V2 Ear Muffs- Includes 1 Pair Ear Cushions & Foam Inserts Case Quantity: 200 Case Length: 55 Case Width: 45 Case Height: 48