Compatible with Sennheiser HD 598, HD 579, HD 595, HD 599, HD 559, HD 569 headband. - Compatible with Sennheiser HD 518, HD 555, HD 558, HD 515, HD 201, HD 419 headband. - Compatible with Sennheiser HD 400 Pro, HD 429, HD 429s, HD 439, HD 449, HD 280 pro, HD 300 pro, HD 400U headband.
eBay