Easy install, each grips we tested, very easy to install, but not easy drop off. Thumb stick grip caps cover protective joystick improves control, and make your finger not feel tired in long time playing Protective silicone cover Thumb Grips Caps for Playstation Portal with environmentally friendly, skin friendly, and safe silicone material. 6 different colors make your better choose and each day have different color match on console. Packded in 12PCS silicone thumb grip caps for Playstation Portal CTHTBZ 12PCS Thumb Grips Caps for Playstation Portal, Anti-Slip Scratch Protective Cover Thumbstick Joystick Caps for Playstation Portal Remote Player