Highly AdaptableEar cushions were designed with versatility in mind. Durable ProtectionFoam cushions are constructed of a durable black foam, allowing for an extended cushion life while providing reliable ear protection. The dimensions of the foam cushions also provides the user with an easy fit for user comfort even in situations of extensive headset and ear set use. HygienicIn addition to the protection, comfort and adaptability of the black foam ear cushions, wearers also benefit from a design that protects against the spread of germs. 13MM - 18MM /45MM / 50MM / 55MM / 60MM Foam CushionsSennheiser - Sony - Plantronics - Panasonic - Philips - Logitec - Creative - Koss - Will Fit Most Headphones Headset Gear