2 Inch ear pads, Please pay attention to the size before buying. These ear pads are compatible with most Headphones with 48mm-55mm headphone drives in diameter, Compatible with Sennheiser/ Sony / Philips/ Plantronics and most other headphones of similar design, good quality foam enhances fidelity of music. <br><br> Compatible with Sony MDR-222KD/PIN, MDR-G42, MDR-G45, MDR-G52, MDR-NC3, MDR-24, MDR-50, MDR-02, MDR-110, MDR-210, MDR-270, MDR-410, DR-BT22, SRF-H4, SRFHM55, TMR-BT8iP <br> <br>Compatible with Sennheiser PMX60, PMX100, PX20, PX100, HD15, HD36, HD56, PC26, PC35, PC141<br> <br>Compatible with Altec Lansing ahs 322, compatible with Xbox 360, compatible with KOSS UR5, compatible with Koss KX 4, compatible with Panasonic RP-HT21, compatible with Plantronics 478, compatible with Logitech H230, compatible with Philips SBC HS500, compatible with Creative Labs SL3100, compatible with Aiwa HP-A270A