Changing Relay #1
This type of composition is put between two color layers in a star to create the illusion that all the stars change their color clearly and simultaneously in spite of slight deviations in manufacture.

Potassium perchlorate.............................35
Potassium nitrate.................................35
Hemp coal (or Paulownia coal).....................24
Soluble glutinous rice starch.....................6

Changing Relay #2
This type of composition is put between two color layers in a star to create the illusion that all the stars change their color clearly and simultaneously in spite of slight deviations in manufacture.

Potassium perchlorate.............................81
Red gum...........................................13
Soluble glutinous rice starch.....................6