Snakebyte Trigger Treadz - Thumb Treadz for PS4 - 4 Pack Thumb Grips - Analog Caps for PlayStation 4 - PlayStation 4 Innovative new grip accessory for your Controller Reduces slippage and protects your analogue thumb sticks from wear and tear Improved grip for enhanced gameplay Simple to apply and easily removed Includes 2 x convex low level grips and 2 x concave raised grips