Unscrew the transparent protective caps from both sides. Unscrew both caps from your refills and carefully screw your favorite colors onto the soft sponge tips. The eyebrow color (GOKOS Refill EYEBROW) belongs on the pointed applicator, the eye shadow color (GOKOS Refill EYESHADOW) on the round applicator. To activate the color for the first time, you should turn the soft sponge tip several times in the cap. So that you can enjoy your pen for a long time, we recommend cleaning the sponge tips regularly with a dry cosmetic tissue.