Upgrade Earpad Replacement Ear Pad Cushion Cover for Sony MDR-NC6 MDR NC6 Headset Headpone Compatible Models: Sony MDR-NC6 & AKG K518 K518DJ K518LE K81Headphones Noise Isolation: High elasticity memory foam material helps to decrese the noise and increse the sound quality Lasting Comfort: High quality protein leather memory foam earpad lets you feel more comfortable Durable Replacement: Well-made protein pu leather reduce any scratch, easy to install and give new life for your headphones Quality Guarantee: we take care of all quality-related issues with a REPLACEMENT OR EXCHANGE