AceShot Thumb Grips (8pc) for Playstation 4 by Foamy Lizard &ndash; Sweat Free 100% Silicone Precision Platform Raised Anti-slip Rubber Analog Stick Thumb Grips For PS4 Controller (8 grips per order) Each order comes with 4 convex and 4 concave 100% silicone sweat free grips Convex right stick for enhanced precision & improved accuracy while aiming Concave left stick for grip and comfort which reduces hand and thumb fatigue Perfect for any FPS Quickly mount over existing new or worn analog thumbsticks