The second version of the GFriend official light stick called Glass Marble Stick was announced on April 16, 2019. It was finally released at the concert in Seoul during 2019 ASIA TOUR [GO GO GFRIEND!] on May 18, 2019. The design is similar to the first version released in 2017. Although this time we have a black handle instead of a white and the head is not filled with a fluid and glitter but contains a moving parts. The letter "G" is distinctly visible inside the transparent light bulb. This is an official product certified by Source Music and manufactured by Fanlight Co.,Ltd.
The light stick is powered by 3 AAA batteries and can operate for 5 hours. It can work in two modes: on and flash. It can produce the light in three official GFriend colors including Cloud Dancer (Pantone 11-4201), Scuba Blue (Pantone 16-4725) and Ultra Violet (Pantone 18-3838).