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Amazon.com: Koss KPH5 Stereo Headphones with Foam Ear Cushions (Discontinued by Manufacturer) : Electronics
2inch Earphone Sponge Foam Pads Cushions for Koss Porta Pro PP PX100 for Sony Sennheiser Philips Panasonic RPHT21 AKG Headphones 50mm Foam Ear Pads Black - Newegg.com
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EarTlogis Replacement Ear Pads for KOSS KSC7 KSC12 KSC35 KSC75 CX6 UR5 PTX6 Headset Parts Earmuff Cover Cushion Cups pillow