To use this Shin Kamen Rider 2+1 LED Head, first, make sure you have a CR927 battery on hand as it's not included. Simply replace the original head of your SH Figuarts Kamen Rider 2+1 with this aftermarket one. You can choose between the two types of jaws to get the look you want. When it comes to maintenance, keep it away from water and rough handling. If the LEDs stop working, check the battery and replace it if needed. Enjoy customizing your Kamen Rider figure with this awesome head!