Sakura Crepas Multifunctional Pen Refill for Ball Sign Red 10 Pieces 4+1 R-GBH04#19(10)

[Compatible product] Refill for multi-functional ballpoint pen "4*1" [Ball Sign 4 * 1] Ultra-fine 0.4mm x 4-color ballpoint pen + 0.5mm Sharp multi-function ballpoint pen (sold separately) [Ink] Adopts the same water-based pigment gel ink as the "Ballsign" series/Writes vividly, darkly and clearly even in notebooks and small areas [Material] Pipe: PP/Nib: Stainless steel/Ball: Carbide [Quantity] 10 pieces