Enhance game experience: with this for switch joy-con controller, it brings your Mario tennis Aces game more fun, like real game.^light weight: adding this switch tennis grip for your joy-con controller will not add much weight to you, but make you enjoy the game more realistic.^More secure with hand strap: each will have one hand strap,so it can be fastened to your wrist when you play switch Mario tennis game. Please make sure to leave enough space around you when you're playing with this ,so you will not accidentally hit any people or objects nearby.^2 Pack, more fun: with 2 pack switch s included, you can play with your kids, friends and family members to enjoy all racket game on Switch platform.^Compatible for all tennis sports game including Mario Tennis Aces. This ergonomic designed will bring your more interactive when playing tennis game.