Nontoxic chalk sticks feature a dustless design to create clean, distinct marks for maximum visibility. High-quality construction is made with 95 percent pure calcium carbonate without any foreign materials to prevent scratching, streaking and pitting. Plus, its durable design resists breaking to prevent wasteful use. Round chalk sticks are compatible with most chalk holders (sold separately).

3.25" (82.55 mm) Length - 0.40" (10.16 mm) Diameter - White - 12 / Box - Non-toxic