From Amazon
edding 850 Permanent Marker - Black - 1 Pen - Chisel Tip 5-15 mm - for Bold Markings - Waterproof, Quick-Drying, Smear-Proof Pens - for Cardboard, Plastic, Glass, Wood, Metal and Fabric
Conrad Electronic
Edding 850 4-850001 Permanent marker Black waterproof: Yes
cccraft
Edding 850 Marker, line 5-15 mm, black, 1 pc