Wisedeal IKASEFU Bling Crystal 3.5mm Rhinestones Night Owl Pattern Cellphone Charms Anti-Dust Dustproof Earphone Audio Headphone Jack Plug Stopper for iPhone 4 4S Samsung Galaxy S2 S3 Note I9220 HTC Sony Nokia Motorola LG Lenovo Plug this kit into 3.5mm headphone jack to prevent the dust Prevent dust from polluting the inside part of phone from earphone hole