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Compared to traditional (JIS standards), it is thicker (0.5 inch (13 mm) in diameter, making it easier and more reliable.
The thickness is easy to hold and will not fatigue even when used for a long time.
Scallop shell ingredients are more vibrant, less powder and less shattering.
Dustless chalk is a calcium carbonate that is also used for toothpaste, so it is safe and safe for your body.
Compared to gypsum chalk, this chalk has a higher specific gravity and is less likely to drip dust.
1.6 times the volume of ordinary chalk.
Coated so your hands wont get dirty.
Thick, not easy to break.
For writing chalkboards and more.