For gamers on the Xbox One and PlayStation 4 who require increased comfort and grip, KontrolFreek AlphaTM was created. Alpha adds very little height and offers a wider thumb surface for improved grip in any game. Just affix Alpha to original thumbsticks to carry on enjoying your preferred games. The non-slip proprietary rubber coating makes a big difference in comfort and grip that you'll notice right away. Additionally, alpha shields your stock thumbsticks from normal wear and tear. Alpha is the simplest and best way to enhance your gaming experience across your whole library of games. It comes in black, blue, or green color options.