Aiivioll's High-Quality Replacement Ear Pads Compatible models: Aiivioll earmuffs are suitable for Bowers & Wilkins PX8/PX7 s2，not suitable for PX7 . Before you buy the product, please confirm your headphone model. Material: Protein leather, high-density memory foam Why choose us: 1: The quality of the product is good. The suture line is thickened at the seam of the earmuffs, so you don't have to worry about the problem of thread coming off during use. 2: Easy to install, use our crowbar to remove the old earmuffs and install the new earmuffs, the new earmuffs will bring you a better experience. 3: Comfortable use: The material is comfortable and the design is scientific to improve your experience. Aiivioll provides product after-sales service： If you encounter any issues during the purchase process, feel free to contact us. If you are unsure how to contact us, you can inquire with customer service.