2 Pairs 5cm Soft Headphone Sponge Cover Ear Pad Cushion Replacement Sleeve For Sennheiser PX100/PX100II/PX200/PX80/PC131/KOSS PP|Earphone Accessories| - AliExpress
Amazon.com: Geekria Protein Leather Headband Pad Compatible with Sennheiser PX100, PX200, PX80 Headphone Replacement Headband/Headband Cushion/Replacement Pad Repair Parts (Black). : Electronics