Replacement Ear Pads for the Sennheiser GSP Series Headphones - Earpadz Jerzee Series | EarPadz
FunnyBeans 2pcs Replacement Earpads for Sennheiser HD 4.50 HD4.50 BTNC Headphones - Walmart.com
Geekria Comfort Hybrid Velour Replacement Ear Pads for Sennheiser GSP
Amazon.com: defean Ear Pads Cushion Replacement, Earpads Compatible with Sennheiser HD 4.50BT, HD 4.50, HD 4.50BTNC, HD 4.50SE, HD 4.40BT, HD 4.30G, HD 4.20S, HD 458BT, HD 450, HD 450BT, HD 400S,