A characteristic: A gel ink ball-point pen to be able to turn off. It is the gel ink ball-point pen which can delete a color by frictional heat when I rub it with the rubber of the rear end of pen. Uni-ball R: E0 .5mm. URN-180C-05.
Product specifications: ◆An ink color: Off black ◆ mechanism: Knock-type ◆ gel ink ◆ extra lead to be able to put out: URR10005 .24 ◆Body size: Axle diameter φ 11.4* thickness 16.4* 145.8mm in total length ◆Standard size: Ball diameter: 0.5mm ◆Body weight: 12.5 g