They're great, it's so nice to have a cushion against my ear again. They're a little tricky to install, but once you get them attached, it's so nice to listen to my Koss Pro4AA's again. Thanks.

Although obviously not fluid-filled like the originals on my "antique" PRO4A cans, these fit and restored functionality. Price was reasonable.

The ear pads are a little hard to put on, but look great when the job is done. An excellent value for the money, too.

SDame as above

Very comfortable, much nicer than the fluid filled. Love my Pro 4AA's.