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They are all very similar. I've attempted to summarise below: Chalk Pure natural calcium carbonate, nothing else. Advantages: It's natural, it doesn't dry your hands out (as much), you're not go...
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They are all very similar. I've attempted to summarise below: Chalk Pure natural calcium carbonate, nothing else. Advantages: It's natural, it doesn't dry your hands out (as much), you're not go...