Finger Force Trainer Colours:Black Joy-Con grip (to which two

Joy-Con grip (to which two Joy-Con are attached and used as one controller)

switch turn on button intoON level

Packing Included:1* dual charger station

Silicon skin protects and offers better grip

Maximum 220 cm / 87 inch

Finger Force Trainer Colours:Black Joy-Con grip (to which twoThe slim size allows you to put it all in one palm, compact and ultra light design, so you can practice anytime, anywhere Reversible molded grip uncovers the analog strings, helping to develop and maintain the fingers of the string musicians Improve your strength, endurance, flexibility and coordination quickly and safely The soft button cap makes it comfortable to press, while it is non slip and sweat proof. Not only can you design musical