Sakura Knock Gel Ink Ballpoint Pen, Ball Sign Knock, 5 Glitter Color Assorted (GBR158-5E) Sakura Knock Gel Ink Ballpoint Pen, Ball Sign Knock, 5 glitter color assorted Model - GBR158-5E Knock type gel ink ballpoint pen from Japanese stationary manufacturer Sakura, many colors available as the series Sakura Knock Gel Ink Ballpoint Pen, Ball Sign Knock, 5 glitter color assorted Knock type gel ink ballpoint pen from Japanese stationary manufacturer Sakura, many colors available as the series