Size:(55mm / 5.5cm) 6Pcs 5mm thick replacement foam Comfortable: Headphone earmuffs and foam are designed for comfort and style. Material: Earmuffs are made of soft foam which makes your wearing cozy and comfortable. Long Life: Guaranteed protection from daily wear and tear due to the flexible nature of this high-quality foam. Installation: Pull out the old earpads. Slip and tuck the edges of the new earpads into the headphone groove. Stretch if necessary.