Paper wrapped wax crayons. Commonly called grease pencils. Will write on most surfaces, including glass. , Available individually and in boxes of 12.
Diamond China Marking Pencils
LISTO XP5L879 Listo 162 Marking Pencils Refill, Box of 72, Grease Pencils/China Marking Pencils/Wax Pencils (Color: Green)
Sharpie China Marking Pencils
Available in different colors
Diamond China Marker Box grease pencils leaves opaque markings without skipping on all types glazed pottery, glass, plastic metal, rubber as
Peel Off China Marker Wax Pencil - Custom Fly Grips LLC
Grease Pencils: Everything You Need to Know
Marking Pencils Listo Pencil Company
Diamond China Marking pencils Multicolour 12 Pcs
Sharpie Peel-off China Marker
Listo Marking Pencils