alaTest has collected and analyzed 4 user reviews of Blackberry Trackball Colored/ Joystick / Navigate / Pearl / Ring Repair Replacement Fix Fixing for Rim (X8) for Blackberry Pearl 8100 8130 Curve (8pk) from Amazon.com. The average user rating for this product is 4.0/5, compared to an average user rating of 4.1/5 for other products in the same category on Amazon.com. People are impressed by the price, whereas many are negative about the reliability.