Review on Enhanced Gaming Experience with Playrealm FPS Thumbstick Extender & Silicone Grip Cover - Xbox Series X/S & Xbox One Controller (Cthulhu Abyss Blue) - Set of 2 by Ken Hamdan

Thumb extension is virtually identical to the X-series joystick copy, so you won't notice a difference. It goes on easily and stays in place. I recommend putting the extender on the right stick only. As for the covers, this is more of a novelty, thumb slipping off them. Overall a good buy for extenders only, they add more precision.