Takako Komiya uses titanium as her preferred material. This material has the advantage of being light and has an array of colour variations, from different shades of green or blue to yellow, pink and purple. One of the principal aspects of her research revolves around the ring that adapts to the person who wears it, insofar as the shape changes according to the person's finger size. Her latest box rings can be worn in several ways and each time it is like wearing a completely different ring.