This spacer will reduce the amount of travel it takes to press the L and R triggers on the Power A wireless GameCube controller for the Nintendo Switch. Insert the spacer peg into the bottom of the left and right triggers. I will upload a how to video on my YouTube channel and will update this summery when it's posted. Howto video - https://www.youtube.com/watch?v=_sJSj439DV0&feature=youtu.be