Tobiko is the salted roe of the flying fish. Tobiko is smaller than salmon roe and an assembly of transparent, golden small spherical eggs. The size of each egg is 1 mm or so in diameter and the peel is so solid that chewing and bursting feelings are enjoyable. Black is infused with squid ink, yellow is infused with Yuzu citrus, red is beet juice and green is infused with wasabi.