Replacement black foam Sleeves for use with the Shure SE Sound Isolating earphones. These reusable foam sleeves fit comfortably in the ear and allow for ease of insertion. The Shure PA910M sleeves are the replacement sleeves for the SE210, SE310, SE420, SE530 and SE530PTH Earphones. Shure also manufacturers other types of replacement sleeves for your earphones if you prefer a different fit. The Shure EA410 is also compatible with the SE210, SE310, SE420, SE530 and SE530PTH Earphones. Package includes 10 sleeves/5 pair.