Tools, #88 Clay Based Marking Chalks (Per Box)

This box of clay based marking chalk contains eight white chalks, two yellow chalks, one red chalk, and one blue chalk. Clay based chalk is much easier to erase. Other chalks that are not clay based will leave a grease mark on cottons and other fabrics. This chalk also works on glass and vinyl where ordinary chalks will not, and this chalk is shaped to maintain a sharp marking edge.