School Series Eco-Friendly Dustless Chalk / Set of 6 Colors

When you think of chalk, you might picture traditional dust-producing sticks made of lime that can be harsh on the respiratory system with prolonged use, right? Rikagaku Industry, a venerable Japanese brand with a chalkmaking heritage, set out to overcome these shortcomings. They developed dustless chalk by grinding abundant discarded scallop shells from Hokkaido into powder and blending it with natural limestone. Through a multi-step process, they created a chalk where the calcium carbonate (from shells) is denser than lime, significantly reducing dust during writing and also decreasing wear. This innovative chalk offers a gentler experience for students and teachers who use blackboards daily, and it's equally ideal for creating eye-catching signs for shops and restaurants! https://live.staticflickr.com/65535/50487732482_705d7299ee_b.jpg This chalk is user-friendly and environmentally conscious for both students and teachers. Its vivid, saturated colors make it an excellent choice for drawing and art. https://live.staticflickr.com/65535/50486549081_dcc785ff95_b.jpg Paired with a small blackboard, it can be adapted to various settings, whether at a shop or at home. Pictured here, it's a fantastic tool for enhancing the atmosphere during birthday celebrations. Pictured with the mini blackboard set / Black: https://www.pinkoi.com/product/jqs6xydp https://live.staticflickr.com/65535/50486456406_3a86ea4c4f_b.jpg Used with a mini blackboard, it serves multiple purposes as a memo board, a message board for sharing thoughts, and more. It's also perfect for happy doodling and freehand drawing, fitting beautifully into any corner. Pictured with the mini blackboard set / Green: https://www.pinkoi.com/product/BavfSN5J https://live.staticflickr.com/65535/50487775427_2669ef2308_b.jpg Combined with Rikagaku Industry's building block blackboard, it nurtures and trains children's creativity and imagination in the most natural way. Link to building block blackboard: https://www.pinkoi.com/product/8N8PygYg **〔 Product Specifications 〕** Contents: 6 Chalk Sticks Colors: Purple, Cyan, Green, Red, Yellow, White Materials: Natural Limestone, Scallop Shell Powder Dimensions: 63mm x 11.2mm diameter Origin: Japan https://live.staticflickr.com/65535/51206628858_11b56a03b7_b.jpg