yueton Pack of 16 Thumb Grip Thumbstick Noctilucent Sets for PS2, PS3, PS4, Xbox 360, Xbox One Controller Suitable for PS2, PS3, PS4, Xbox 360, Xbox One controller The white ones are absorbing light then be noctilucent in dark Provid more accuracy and sensitivity through your game play Add extra grip and comfort to your game play and prevent your fingers from slipping Pack of 16 in 8 different colors