Shure EA510M Soft Flex Replacement Sleeves (Black) for Shure E2c, E2g, I2c and QuietSpot Headsets - Medium Replacement sleeves for Shure E2c, E2c-n,E2g, I2c and QuietSpot Headset models 5 pair of each - Size Medium (10 pieces) Replacing your sleeves often will maximize your listening experience Also compatible with Shure Ict Series items