Piece of tuna nigiri, which is a type of sushi that features a slice of raw tuna laid over a bed of pressed vinegared rice. The tuna has a vibrant red-pink color, indicating freshness and quality, and it drapes over the rice, extending slightly beyond its length on either side. There is no visible garnish or sauce, which is typical for traditional nigiri sushi, allowing the flavor of the fish to be the main focus. The simplicity of the presentation highlights the fish's natural texture and taste.