USAMZ909 Cute Transparent Bowknot Shape Anti Dust Plug Stopper Earphone Jack For iphone 4 4s 3.5mm Condition: 100% Brand New High Quality, Stylish and Durable Easy to install and remove Design to prevent dust entering headphone jack Headset Dust Cap compatible with Apple iPhone / iPod, and most cell phone with 3.5mm earphone plug.