YOUNGFLY 5pcs Cool Skull Anti Dust Earphone Jack Plug Stopper Cap For 3.5mm iPhone 4S HTC Random Color Easy to install and remove. Prevent dust from polluting the inside part of iPhone from earphone jack hole. Not only a anti-dust plug, it also decorate your iPhone and gives it a good look. Very small but useful and easy to use. It is not only used for iPhone 4/4S, Samsung Galaxy SII/SIII but also compatible with other cell phones with 3.5mm earphone jack.