Alpatronix 5-Pack Set of Assorted Colored Bumper Frames for BX140 Battery Case [Fits only BX140 Battery Case; 4.7 Inches] - (Smoke, Green, Purple, Blue & Red) 5 additional color bumpers for more color options for your Alpatronix BX140 battery case. Comes with colors: Smoke, Green, Purple, Blue, Red. Please note, extra color bumpers ONLY fit for the Alpatronix BX140 battery case. Emergency replacement bumper in case other color bumpers are misplaced or broken. 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 BX140 battery case within seconds.