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A porpoise pro whistle (Dolfinpro) which molten Co., Ltd. released won a good design prize in 2004. ※It is news of 2004, but lists it to gather it...
The imitation of inferior quolity is a sold thigs,but a shape is sasy to imitate any product as a simple thing.
A Dolfin pro whistle has a collar released only in a specific country.
Named "Donfln" and the thing which there is have it in various ways. It is a similar product comparison, molten company Dolfin whistle.
The production porpoise professional whistle of the molten to sell has color variations in various ways. That change by the year, and an attributive color is made and. While being usable for an official game, colorful and "KAWAII" to overcome! There seem to be a lot of people gathering by a hobby.