Geekria QuickFit Protein Leather Replacement Ear Pads for AKG K550, K5
Defean Replacement Earpads Cushion cover foam For Akg k550 k551 k553 k 550 551 headphones|Earphone Accessories| - AliExpress
Amazon.co.jp: Geekria Case Shield Headphone Case Compatible Hard Case Travel Hard Shell Case Compatible with Sennheiser Sennheiser HD650, HD600, HD598, HD558, HD518, Arkage AKG K550, Sony Sony Z7 with Storage Pouch (Black) :
Sennheiser HD650, HD600, HD598, HD558, HD518, AKG K550, K551, K701, ATH A900, M50, M50x, Sony XB700, XB500, XB300, MA900, MA100 ヘッドホンキャリングケース / バッグ、ケーブル、 AMP、部品および付属品を収容する余地がある / Headphone Full Size Hard ...