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The human hand is a very sensitive tool. Also, when we hold onto something and use it, humans often feel uncomfortable with very small changes in figures. Therefore, we proceeded with many prototypes to provide optimized sizes to users. In the prototype, we considered not only the basic size but also the natural direction of force that occurs when brushing teeth, and as a result, we were able to derive the optimized size and shape.
This design uses a very intuitive formulation method. Designed with minimal elements to minimize complexity
and implement the most beautiful forms, it offers the simplest yet most complete usability.
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