Aim Assistant Ring is an easy to use and highly effective controller upgrade for shooter and racing games such as Battlefield, Call of Duty, Need for Speed, etc. Due to the unique shape and cellular structure of the Aim Assistant Ring, the analog stick's resistance is increased. As a result, controls are much smoother and more precise, enabling you to aim and drive more accurately than ever before. Only the Aim Assistant Ring let you adjust your analog stick's resistance without taking your controller apart. (This means you will not void your warranty!) It fits the original Xbox One,PS4 & Switch Pro controller Try Aim Assistant Ring and you'll never want to play without them again.