Perhaps your impression of chalk is limited to its dusty, chalk-based origins, which can be detrimental to the respiratory system with prolonged use?
Nihon Rikagaku Industry, a venerable Japanese brand with a chalk-making heritage, sought to overcome these traditional limitations. They developed dustless chalk by grinding abundant discarded scallop shells from Hokkaido into powder and blending it with natural limestone. Through meticulous crafting, they created chalk that produces minimal dust. The calcium carbonate (from shells) is denser than lime, resulting in significantly less dust during writing and reduced wear. Coupled with thoughtfully designed chalk holders, the writing experience becomes smoother and more comfortable, offering a friendlier option for teachers and students who rely on blackboards daily, as well as for creating eye-catching signage in shops and restaurants!
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Easy to handle and environmentally friendly for students and teachers, these chalks offer vibrant, saturated colors—an excellent choice for drawings and art.
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Paired with a small blackboard, they can be adapted to any setting, whether in a shop or at home. The image shows a helpful tool for enhancing the atmosphere during birthday celebrations.
Image shows: Small Blackboard Set / Black: https://www.pinkoi.com/product/jqs6xydp
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Used with a small blackboard, they serve multiple purposes as a memo board or a place for personal messages. They are also perfect for happy doodling and freehand drawing, fitting beautifully into any corner.
Image shows: Small Blackboard Set / Green: https://www.pinkoi.com/product/BavfSN5J
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When combined with Nihon Rikagaku's building block blackboard, they naturally foster and nurture children's creativity and imagination.
Image shows: Shaped Building Block Blackboard Set + Dustless Chalk: https://www.pinkoi.com/product/8N8PygYg
**〔 Slim White Dustless Chalk - Product Specifications 〕**
Dimensions: 63mm x φ7mm
Color: White
Material: Chalk/Calcium Carbonate (including scallop shell powder)
Link for individual purchase: https://www.pinkoi.com/product/q5Z7KSMn
**〔 7 mm Black/White Chalk Set - Product Specifications 〕**
Contents: Chalk x2, Chalk Holder x1
Material: Chalk Body - Brass (Acrylic Paint)
Chalk - Natural Limestone, Scallop Shell Powder
Dimensions: Chalk Holder - Length 105mm x Diameter 10 mm, Chalk - Length 63 mm x Diameter 7 mm
Link for individual purchase: https://www.pinkoi.com/product/mHv3tn6m
**〔 Precautions 〕**
● This chalk holder is compatible with chalks that have a diameter of 7mm.
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Product Description
Product Details
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- Other Materials
- How It's Made
- Handmade
- Where It's Made
- Japan
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- No.34,525 - Stationery | No.441 - Other Writing Utensils
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- Nihon Rikagaku Industry
- Listing Summary
- Slim White Dustless Chalk Set (with Black/White Chalk Holder) - Value Bundle. Made with a blend of scallop shells from Hokkaido, Japan, and natural limestone, this chalk is eco-friendly and non-toxic. The calcium carbonate particles are dense, minimizing airborne dust. Paired with a specially designed chalk holder, these chalks can become a stylish part of your daily writing routine!
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