Amazon.com: Geekria Fabric Headband Pad Compatible with Sennheiser HD600, HD580, HD650, HD660 S Headphone Replacement Headband/Headband Cushion/Replacement Pad Repair Parts (Black) : Electronics
Sennheiser HD 650 Stereo Reference Headphones 508825 B&H Photo
Senior Velvet Replacement Cushion Ear Pad For Sennheiser Hd545 Hd565 Hd600 Hd650 Headphone Silk Light - Earphone Accessories - AliExpress