BLK Trackball For Blackberry Curve 8300 8310 8320 8330 Replace your scratched, lost, defective or broken trackball. Restore your cell phones functionality with the new trackball. Simply pry out the chrome ring with a thin flat bladed screwdriver tip, replace the old track ball with this new one firmly Color: Black.Note: Our company is not responsible for any damage caused by installation of this accessory Compatible With BlackBerry: 8800 Series 8800 / 8820 / 8830,Curve 8300 / 8310 / 8320 / 8330 / 8350i,Pearl 8100 / 8110 / 8120 / 8130