Made from 100% premium hygroscopic magnesium carbonate (MgCO3).
50g in a resealble ziplock bag

Your Chalk Boy “CRUNCHY Chalk” is super convenient pieces of chalk, stored in a reusable ziplock bag! Simply rub them, crush them, turn them into powder. No more giant bags of dust — just the right amount.

All packing is fully recyclable

Its designed as a single refill for your chalk bag, you get the perfect amount of moisture-busting chalk right when you need it, minimizing mess and maximizing convenience.
It works!

Super Convenient

Crunchy Chalk