The Joy-Con Comfort Grip transforms the left and right Joy-Con into a single, comfortable video game controller for the Nintendo Switch. The ergonomic rubber grips are good for your hands and fingers, preventing cramping during long gaming sessions. Simply slide each Joy-Con controller along the rails until they click into place. The player indicator lights will then illuminate through the area in the center. Additionally, the Comfort Grip stands on its own, allowing you to display it next to your Nintendo Switch dock.