Manufacturer's Description
These reusable, disposable foam sleeves compress to fit gently into the ear. Once in the ear, the foam expands to form a tight yet comfortable seal that holds the earphones firmly in place. The E1c, E3c, E4c, and E5c come with one pair of universal fitting yellow foam sleeves. The E2c/E2g earphones come with three sizes of orange foam sleeves to choose from (small, medium, large) for the best personal fit.
Product Description
Shure PA752M Medium Orange Foam Sleeves for E2c / E2g / i2c / QuietSpot (5 Pairs)