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Alternative Headband For Audio Technica ATH-M20X M30 M40 M50X Headphone Cushion Replace Cover Pad Head Band - AliExpress
Amazon.com: toyofmine Headband Cushion Hook Repair Part for Audio Technica Ath-M50 Ath-M50X Ath-M50S : Electronics
ATH-M50X Headband Pad Replacement [Build notes in the comments] : r/headphones
Replacement Headband Pad Top Suitable For Audio Technica Ath M50 X S Headphones 7cm Round Case Universal - Protective Sleeve - AliExpress
Amazon.com: TRANSTEK ATH M50X Headband Cover - Also Compatible with ATH M50, M40X, M40, Cloud 2, Cloud Pro, Cloud Alpha, G PRO X, HS50, HS60, HS70 Headphones (Black) : Electronics