Earpads Cover Protectors: Our ear covers are made of super slim silicone, protecting your headphones from further breakdown from sweat at the gym while keeping your headphones dry. Replacement Headband: By using 3D printing technology, we have perfectly reproduced the shape of the original headband. Avoid the embarrassment of using the headband wrapping cloth. Replacement Ear Cushions: Adopting the High-density foam and High-grade protein leather, our earpads will seal around your ears brilliantly, ensuring you excellent noise isolation and enhanced bass. Compatible With: QuietComfort 35 (QC35), Quiet Comfort 35II (QC35 II) Over-ear Headphones Only. What You Will Get: A pair of protein leather ear pads, a pair of silicone protective covers, a headband, making your headphones brand new again.