PROM Juicy Pop Ball Pen 3 Pack Brand name:PROM Made in South Korea Length: 6.3" Line size: 0.5mm 3 pack of all black pen/ 3 pack of black, blue, and red pen Features outstanding Pop colors plus rubber grip which makes hand feel comfortable. Pen of purple, pink, yellow, and green grip has black ink. It write softly without leaving chunks of ink.