If you’re looking for a versatile set of chalk markers, the IJIANG Liquid Chalk Markers are worth considering. Pros. The 6mm reversible tip allows for both fine and bold lines with just one marker.

Liquid Chalk Marker Pen - White, Dry Erase for Chalkboard Signs, Windows, Blackboard, Glass with 24 Chalkboard Labels Included (6 Pack) 3-6mm Reversible Tip, 3-3mm Fine Tip ...

The jumbo liquid chalk markers come with 10mm 3-In-1 large nib and bright neon colors, and each car window marker’s rectangle thick tip provides 3 different line width options ...