2 pcs x New Black Luxury Generic Replacement Leather Cushions for Porta Pro and Sporta Pro Only cushion, not include headphones Compatible ONLY with Koss series Headphones - 50mm foam sound sponge For headphone ear pad Function: adjust music effect sound quality Diameter:50mm Compatible with: KOSS Porta Pro, Sporta Pro, KSC35, KSC75, KSC55, KSC50, KSC-10, KTX PRO1, KTX8, PTX6, KSC-11 KSC17, KSC7, KSC-12, CX6, KTX16, Fast Delivery within 2 days departure!