TENNIS RACKET FOR NS SWITCH: Joy-Con controller adapter for Mario Tennis Aces Game, also features an adjustable wrist strap for added security so the racket doesn't go flying. NS SWITCH MARIO TENNIS RACKET: For use with Joy-Con controllers to transform into the tennis racket needed to play Mario tennis aces - Joy-Con easily clicks in and out of the racket for quickly changing up switch accessories between games. COMFORT FIT: This Joy-Con controller adapter tennis racket has the perfect fit for users of all ages - not too big or too small and fits comfortably in your hand - Joy-Cons fit securely in the rackets and will not pop out while playing in swing mode. FUN FOR THE ENTIRE FAMILY: The beauty of the Switch is that anyone can play almost anywhere - NS Switch and OLED tennis racket and other switch accessories will entertain the whole family for hours with games like Mario Ten Aces.