Okolin One can be beautiful and suffocating, but don't make "vase" Okolin One's exterior design is very exquisite, but each aesthetic design has practical connotation. If a good aesthetic design is not realized by good technology, it may stay on paper forever. Oclean applies the manufacturing process of high-end mobile phones to the electric toothbrush industry. This may be the first time the industry has done so. However, an electric toothbrush may accompany you longer than a smart phone, so it is not a waste to make beautiful and delicate.