The spec rolleball bigner set.

Shinmyo Rollerball Bigener Set
Size H38mm × W77mm × D170mm
weight 171g
accessory One paperbar card, one handbag, one bag.
Shinmyo Lowerball: 0.5mm
Specification Detail Check this out.
Shinmyo Lowerball Pen to 0.5mm
Specification Detail Check this out.
Shinmyo Ball-In-ink
Specification Detail Check this out.