Almost completely dust-free, hard blackboard chalk. Harder than our other Blackboard Chalks, some people prefer this for the writing portion of their chalkboard drawings. Because this chalk can leave a residue on certain blackboard surfaces, it is recommended you follow the instructions for chalkboard conditioning below.
Box of 12 pieces.
Size: Each measures 3.15 inches long
Ages 3 and up
Due to the nature of this brittle chalk, it's likely several of the pieces will arrive broken but are still considered useable.
Sorry, we cannot accept returns for chalk.
Conditioning a New Chalkboard
A new chalkboard is porous and you will want to prime or condition it before use, otherwise your first drawing could be there permanently. To condition a new chalkboard, lay a piece of this white chalk on its side and cover the board generously, first from top to bottom until covered and then from left to right until covered. Using a soft, dry cloth rub the chalk in well and then erase. Repeat.