5 Pairs Headphone Ear Foam Pad Cover for ony MDR-Q21/Q22/Q23/Q38/Q21LP/Q68/BT140Q/Q50/Motorola S305/Audio-Technica -40mm/ 1.6" Headphones Very easy to put on Diameter: 40mm / 1.6" Quantity: 5 Pairs / 10 Packs Compatible with Sony MDR-Q22 /MDR-Q21 /Motorola S305 and similar headphone High elasticity, durable, light-weight, soft and comfortable