Dustless blackboard chalk is the most preferred chalk category for saving the environment. This ecofriendly chalk prevents the waste and release of chalk particles. This chalk is highly durable in comparison to the conventional chalk. This is wear resistant and significantly provides dust to be non-sticky to prevent fly of dust. Dust blackboard chalk is safe for childrens use as there is no risk of chalk particles falling in their eyes. Teachers also like the advent of this category of chalk for blackboard system.