BIC Z4+ Roller Pens, Fine Point, [Z4CP2] 2 Count (Pack of 4) 8 Pens Total Pack of 8 Fine point 0.7mm pens total (Packed as 4 x 2 count packages) Tungsten carbide ball, perfect sphere and very resistant Steady writing with constant ink flow Rubber grip for comfort and control Transparent area for visible ink supply