Kitpas has been making quality art materials for over 80 years. In the 1960s, they expanded to Bibai-shi, Hokkaido, a town which was faced with large quantites of discarded scallop shells. With the help of local government, Kitpas developed a patented process to recycle these shell byproducts. The use of powdered shells had the additional benefit of making these chalks stronger, smoother, and longer lasting. Made in Japan.
- Designer: Kitpas
- Country of Design: Japan
- Materials: Scallop shells and calcium carbonate
- Measurements: Box of 12 pieces