TWSBI Leather Roll Case Midnight Blue Color:Midnight Blue Improved grip and end barrel

Improved grip and end barrel section compared to 540

As an added benefit to those who own the Diamond 530

at a specialty small craftsman factory who used to make leather for baseball mitts

Turning the piston knob of the fountain pen will draw the ink up into your pen

TWSBI Leather Roll Case Midnight Blue Color:Midnight Blue Improved grip and end barrelWe partnered with a small specialty leather factory in Himeji, Japan to produce this leather roll case. The leather chosen is genuine leather processed and dyed in Himeji; at a specialty small craftsman factory who used to make leather for baseball mitts. We made sure to use only leather that came from the by product of meat production; in order to save waste. It is then handcrafted and sewn into a roll case. Each leather piece will wear in with time;