Sakura Gelly Roll Pen Set, 5-Colors, Light Metallic. Decorate, doodle, color-code and vision board with these Gelly Roll pens! These pens glide smoothly for comfortable writing and note-taking. Gelly Roll ink is a hybrid of the best features of ball-point pen's grease and a rollerball's liquid ink. This set includes Blue, Emerald, Gold, Purple and Silver.