GFRIEND Light Stick Ver. 2Looking for an official GFRIEND Light Stick Glass Marble Stick Ver 2 ? This light stick features a unique design with the letter "G" distinctly visible inside the clear light bulb. The letter "G" has the ability to move and spin around inside the bulb. This light stick can be connected to a central control at GFRIEND concerts in a fanlight mode. It works in 2 standard modes: on and flashing and requires 3 AAA batteries to operate (not included) and