Dust-free chalk hexagonal 1 box
▸ Product type: teaching dust-free chalk (white color general-purpose type)
▸ Pen body structure: hexagonal anti-roll design
▸ Material composition: low-dust gypsum-based formula
▸ Packaging specifications: standard boxed
▸ Applicable scene: blackboard/whiteboard writing without dust residue
▸ Pen body structure: hexagonal anti-roll design
▸ Material composition: low-dust gypsum-based formula
▸ Packaging specifications: standard boxed
▸ Applicable scene: blackboard/whiteboard writing without dust residue
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