Technics AZ80-K Replacement Mesh Sheets 【PNYSAAZ80】! Purchased from the official Panasonic store♪ There are types A and B for the mesh sheets, and this is type A. We recommend that you check which type is compatible with your earphones before purchasing☆ This is just my personal experience, but I started having trouble hearing in one ear, and I thought I'd try replacing the mesh sheets before sending them in for repair! It was resolved surprisingly easily♪ (I was a little disgusted with myself, wondering if they were that dirty...) I will cut one set of sheets from the package with scissors and send them in a separate zip-lock bag. I've set the shipping method to "regular mail" to keep the price as low as possible, but this method does not include tracking. You can upgrade to "Yu-packet Mini" with tracking for an additional 100 yen. Please let me know in the comments if you'd like to do so, and I will adjust the settings. No claims or returns accepted. I am also selling [two sets] separately. Please take a look if you're interested♪