Released to celebrate the 20th anniverary of Uni-Ball Eye pens, the Eye Designer is based on a pen that has been a favourite of many for over 10 years, the venerable UB-157. High-quality and reliable rollerball featuring waterproof pigment ink and 'Uni-Flow' system to ensure a continuous consistent write to the last drop. 
Stainless-steel tip with tungsten carbide ball.

0.7mm ball writes a 0.5mm line.

Please note that only Black, Blue and Red ink versions of this pen feature waterproof pigment ink.