The Uni-Ball Chalk Markers are a revolutionary tool for writing on blackboards. Just like a marker, but with a chalk tip, it allows for easy writing and erasing.

Chalk markers write on various surfaces: chalkboards, windows, metals, plastic, and other non-porous surfaces.
Water-resistant
Plastic body
Bullet-shaped polyester tip
Line width 1.8-2.5mm average
Resistant to rain, snow, and other weather conditions
Opaque ink and vibrant colors
Easily removable from non-porous surfaces using a damp cloth and friction