Alpatronix BX120 Additional & Extra Color Bumpers for iPhone 5 / 5S Battery Case - 5 Pack (Assorted Colors - Gray, Red, Green, Blue, Black) 5 additional color bumpers for more color options for your Alpatronix BX120 battery case. Comes with colors Gray, Red, Green, Blue & Black. Please note: extra color bumpers are fitted ONLY for the Alpatronix BX120 battery case. The extra color bumpers will NOT fit the Alpatronix BX120plus battery case. Emergency replacement bumper in case other color bumpers are misplaced or broken. More added flare and variety depending on your mood. Match the color of other accessories you own. Installation is easy and connect to your existing Alpatronix BX120 battery case within seconds.