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They do not produce much dust.
Excellent quality hypoallergenic white plastic chalks.
Ideal for writing on blackboards.
Made from calcium carbonate, these round chalks are designed for use on blackboards.
Robercolor chalks are made from real chalk from France and are dermatologically tested and dust-free.
They glide smoothly across the board without scratching, leaving a clear, sharp line.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.