Edding 800 4-800-1-1001 Permanent marker Black waterproof: Yes

Permanent marker with chisel tip · Permanent, low-odour ink · Refillable · For writing, painting, labelling of almost all materials including metal, glass and plastic · Quick-drying · Smudge and waterproof · Light-resistant · Does not contain Toluol/Xylol.

Price: £ 6.49 from Conrad Electronic