Uni-Ball Signo Series Japan.

Signo UM-151 48C Limited Edition Set - Limited Quantity only
For individual pieces go to this link => http://list.qoo10.sg/g/549857809

• UM-151 DX 0.38mm X 32 colours
• UM-151 DX 0.7mm X 16 colours
• Come pack in a very nice box
• Unique twin-ball mechanism prevents ink backflow and leak.
• Rubber grip that fits comfortably in your hand for ultra-fine precision and fatigue-free writing
  

0.38
Blue Collection
Blue
Prussian Blue
Light Blue
Sky Blue
Blue Black