FITS YOUR DEVICE PERFECT : Compatible with Samsung Galaxy J2 Core. Precise openings allow easy accesses to all buttons and ports without removing the case. FINGER RING HOLDER : Promotes better one hand control. Also can be a stand for horizontal use when you enjoy movies. STRONG ROTATION : Two rotation methods (150?? and 350??) allow you to choose the most comfortable way to use it. MAGNETIC CAR MOUNT SUPPORT : Be equipped with metal plate could work with magnetic car mount without stick another metal attachments.(the magnetic car mount is not included) FULL PROTECTIVE : High quality touch TPU slim thin profile edge offers a good amount of protection , scratched resistant and fingerprint-proof. The diamond pattern design inside promotes rapid cooling.