Aliens Magnesium Ball
The Aliens Chalk ball is not the Cheapest, but worth it. Very economical and in many halls now a must in order to reduce air pollution caused by flying magnesium dust.
Equipped with permeable material, you have with this ball well enough chalk on hand when you need it. Available in 2 sizes.
Equipped with permeable material, you have with this ball well enough chalk on hand when you need it. Available in 2 sizes.