eXtremeRate Sweat Free Anti-Slip Pack of 8 Silicone Rubber Precision Platporm Raised Analog Sticks Thumb Grips for Playstation 4 PS4 PS4 Slim PS4 Pro Thumbsticks 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 Halo, COD and pretty much any FPS Quickly mount over existing new or worn analog thumbsticks