Perpendicular chalk is an excellent prescription for better friction.
 
This 160g superfine chalk is perfect for your outdoor project or to refill your chalk ball. The finesse of this product does not only coat the hands perfectly, but also gives you the extra friction to crush that project.
 
Perpendicular chalk is a premium high-performance product made from magnesium carbonate sustainably sourced from seawater. The pharmaceutical grade means high purity of magnesium carbonate, which means a cleaner and purer chalk with a better ability to absorb sweat and therefore longer-lasting performance.
 
Sustainably sourced from seawater
Pharmaceutical grade magnesium carbonate
Pure and clean
 
Ingredient: Magnesium Carbonate