It is an all-weather type that does not disappear easily even if it gets wet.
It is a component of scallop shell, which is more vivid, less powdery and less scattered.
Dustless chalk is a product whose main ingredient is calcium carbonate, which is also used in toothpaste, and is safe and secure for the body. Compared with gypsum chalk, this chalk has a high specific gravity and hardly dusts.
Human-friendly, water-resistant outdoor chalk made of calcium carbonate.
Comes in a chalk case package.
It can be used more than twice as long as plaster chalk and is economical.
For writing on a blackboard for rainy weather.
Specifications
Depth (mm): 11.2
Height (mm): 63
Color: White
Width (mm): 11.2
Products conforming to the Green Purchasing Law
Materials / Finish: Fine powder of calcium carbonate and scallop shell