Reversible Medium Disc EarringsPRODUCT NAME Blue Japanese Wave Blue Dot Reversible Medium Disc Earrings PATTERNS Japanese Wave Pattern (Seigaiha): The origins of the name Seigaiha are in the gagaku ancient court dance of the same name. Dancers wore costumes with the Seigaiha pattern on, a pattern of fan shaped waves, made up of concentric arches, from the open sea. The pattern represents calm, peace, and quietness, characteristics often associated with the sea. Skin of a Shark