Shure EA410M Soft Flex Replacement Sleeves f(Gray) or Shure E3c, E3g, E4c, E4g, E5c, I3, I4c, E3c-n and E4c-n models - Medium Replacement sleeves for Shure E3c, E3g, E4c, E4g, E5c, I3, I4c, E3c-n and E4c-n models 5 pair (10 pieces) Replacing your foams often will maximize your listening experience Also compatible with Shure Ict Series items