Tidu-ps4/ps3 CQC Thumb Grip for Analog Controller 1.Tidu-02 CQC thumb grips provide gamers more accurate control by increasing 5.5mm analog sticks height and 37% in active radius 2.It helps gamers earn extra 37%room for refined control or aiming your target,and much less chance to have over steering. 3.The extra 5.5mm height is based on study of hundreds adult hands samples. 4.The height is well balanced between the control and comfort. 5.Tidu-02 CQC thumb grips are suitable to Professional Gamers