edding 8407 Professional Cable Marker Set - 50 Pieces for Wire Labeling and Organization - Perfect for Home, Office, and Industrial Electrical Wiring Projects

Set of 4 marker pens that have been specially designed for fine marking on various types of cable. The extra-fine 0.3mm point writes a consistently fine line of highly-permanent waterproof ink.

Set contains 4 pens, one each in: black, blue, red and green.

Note: These won't show up on black cables, and may not show up well on very dark colours.