REPLACEMENT EARPADS: Our state-of-the-art replacement pads are designed to fit Bose QuietComfort QC25 but can also work with other QC series headphones including the QC 2, QC15, QC25, QC35, AE2 AE2i AE2w, SoundLink & SoundTrue headphone models. QUALITY MATERIALS FOR IMPROVED SOUND: Engineered for amazing sound quality, we use the best materials including high quality PU Leather and soft foam for best comfort and performance. DURABLE FOR HEAVY USE AND A LONG LIFE: Exceptional craftsmanship and materials went into each set of aibileec headphone ear covers. Youll enjoy them for years, no matter what you put them through. EASY TO INSTALL: Comes complete with a pre-fitted attachment ring and a fresh set of Scims in original Blue colorway, with pre-fitted 3M tape.