Voarmaks Headband Cushion Cover Compatible with JBL Tune 500BT, 510BT, 520BT, 600BT, 600BTNC, 660NC, 670NC, 700BT, 710BT, 720BT, 750BT, 750BTNC, 760NC, 770NC, 6mm Thick Cushion with Hanging Loop. Softer & Villi SurfaceMaterial.
eBay