OHTO PS-107NP 0.7mm Ballpoint Pen Refill

OHTO’s PS-107NP is a “soft” ballpoint ink refill featuring their famous precision needle point tip. It is the stock pen cartridge for the OHTO Horizon GS01 pen. Black ink. Pen sold separately. Also Fits: OHTO Horizon Gel (discontinued model with no side-knock) OHTO Rays  MARK’STYLE Days Kaweco Sport Rollerball