Mammut Chalk Powder is a pure Magnesium Carbonate with no nasty drying additives. It is one of the finer chalks providing a good even coating and providing performance on the rock. The bag is resealable keeping the chalk dry and preventing unwanted spills.
Please note: The 300g size no longer comes in a paper bag. It is now in a resealable plastic bag.
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Pure Magnesium Carbonate in a net ball, ideal for indoor walls, 40g.