increased comfort - extra wide, concave surface provides more comfort by adding up to 101% more surface areaenhances grip - non-slip, proprietary rubber compound enhances grip, no matter how hard you playsecure fit - stem easily snaps onto stock thumbsticks, ensuring a secure fit and does not slip or stretch like other brands' thumb gripstwo low-rise (concave) thumbsticks - adds a minimal height of 3.7 mm so you can adjust quicklyversatile - the added grip and comfort works well across your entire library of games and protects stock thumbsticks from wear and tear *packaging may not reflect updated compatibilityproduct description:adding a nominal 3.7mm of height, alpha?s big performance comes in a small, easy-to-use package. alpha quickly attaches to standard thumbsticks to add extra comfort and grip thanks to its extra wide thumb surface and proprietary rubbery coating. kontrolfreek alpha was developed for xbox one and playstation 4 owners who need more grip and comfort while gaming. great for any game, alpha provides a wider thumb surface for better grip while adding minimal height. simply attach alpha to oem thumbsticks and continue playing your favorite games. you?ll instantly feel a major improvement in comfort and grip thanks to the non-slip proprietary rubber coating. alpha also protects your stock thumbsticks from every day wear and tear. available in black or blue color options, alpha is the easiest and best way to improve your gaming experience across your entire library of games.