One point advice that you can wrap it well with thick rolls.
1. Open the front of the seaweed with about 0.4 inch (1 cm) and the other side of 0.8 to 1.2 inches (2 to 3 cm) to make vinegar serving.The better to spread the vinegar serving in small portions and spread it evenly.
2. Place the piece slightly below the center and roll it up.
3. Roll it up for about 2 minutes.To cut, wipe the knife with a damp cloth and cut it.