Juice water based pigment gel ink ballpoint pen with a reputation for vibrant colors and smooth drawing. up/juice up". The newly developed synergy tip with both fine and smooth nib and new pigment gel ink produce an ultra-fine and smooth writing experience. Ball diameter: 0.01 inch (0.3 mm) Ink Color: Orange Ink Type: Water-based pigment gel ink Refill (sold separately) Part Number: LP3RF12S3 (Black, Blue, Red, Blue Black only). Some images have been used with other colors.