UPSIDEUP.store :: Replacement Round Nibs, 2-4 mm – for Neuland No.One® Whiteboard, Extend the life of our refillable Neuland markers significantly by replacing their nibs. This is what we call environmental thinking and acting. Alt + 010 Important: Replace nibs of the same kind only. Otherwise problems with the flow of ink might occur. (Do not replace wedge nibs in markers that originally have round nibs!) Alt + 010 Technical details: Line widthis: 2-4 mm Material: polyester