From Amazon
edding 25 Ecoline permanent marker - black - 1 pen - round tip 1 mm - waterproof, quick-drying, smear-proof pens - for cardboard, plastic, glass, wood, metal and fabric - refillable
Conrad Electronic
Edding e-25 EcoLine 4-25001 Permanent marker Black waterproof: Yes
cccraft
Edding EcoLine marker, line 1 mm, black, 1 pc