For owners of Xbox One and PlayStation 4 who require greater comfort and grip when gaming, KontrolFreek AlphaTM was created. Alpha adds very little height and offers a wider thumb surface for improved grip in any game. To continue playing your favorite games, just connect Alpha to the original thumbsticks. You'll notice an immediate improvement in comfort and traction because of the proprietary non-slip rubber coating. Additionally, Alpha shields your stock thumbsticks from normal wear and tear. Alpha, which comes in black, blue, or green color options, is the simplest and most effective way to enhance your gaming experience across all of your games.