Sumo Dohyo Toku Dawara. Made For My Sumo Dohyo (Ring). No Poses Included. Please Try It Before You Buy! No Refunds!! Please Leave Reviews Below And Concerns On My Page. "Osu No Seishin". Dawara or Tawara. Bales of rice straw. Tawara are half-buried in the clay of the dohyo to mark its boundaries. A rice bundle embedded into the dohyo clay which form shobu-dawara; originally taxation related unit of measurement; rice container of approx. 72 litres (several other sizes exist), see toku-dawara, janome, fumi-dawara, kengamine, nijuudohyo.