Crayola Nontoxic Anti-Dust Chalk, White, 12 Sticks/Box (50-1402) For $0.68 @ Amazon

• Low-dust chalk for use on most chalkboards.
• Makes clean, smooth lines.
• Erases easily.
• Anti Dust. 12 sticks
• White Chalk
• Great for the classroom.
• 12ct Anti Dust White Chalk Sticks

https://www.amazon.com/gp/product/B00006IBOR