These handmade wooden tops are unique in their design, so much so they have been awarded their own patent. They have also received several awards for their design and innovation.
The Japanese name is Tōmeikoma (透明こま) and translates as “transparency top” because the sides seem to disappear and you see the cone of Mt. Fuji. Different color patterns show Fuji in different lighting: midday, sunset, sunrise, and afterglow.