refill for multifunctional pen 3+1 5171 blue

Ballpoint pen liner for a ballpoint pen intended for common writing. The ballpoint pen liner 88 mm long, of which 80 mm plastic part, 8 mm tip identified with blue strip to identify the colour of the writing paste, steel ball with 0,7 mm diameter. Writing paste of blue colour. Plastic part filled with writing paste, provided with pressed in writing tip. Length 88 mm. Diameter 2,95 mm. Steel ball, 0,7 mm diameter. Minimum uninterrupted track length is 800 m.