PM-B501B KOKUYO Whiteboard marker Yokumiere direct liquid cartridge type fine print blue PM-B501B KOKUYO 4901480287089 (10 sets)

Fine print Shaft diameter: φ21 x length 135mm You can clearly see the amount of ink left! This is a cartridge-replaceable whiteboard marker. ◆Writing line width: approx. 1.2 to 1.7mm ◆Oil-based ink (alcohol-based) ◆Replaceable cartridge ◆Vent cap Shaft, cap, cartridge, cover: R-PP exclusive cartridge: PMR-B5B, replacement nib: PMR-BP01