Rice symbolizes food, including not only spiritual food, but also food in the usual sense. Oil and have the same pronunciation, so many people think that sending oil is to enrich each other's lives, especially when moving or celebrating the New Year. Secondly, oil is a daily necessities that every household will use. Although it doesn't look very expensive, it is practical and will not be wasted, and it is suitable for ordinary families. In addition, there are many different grades of oil and packaging that are also very beautiful as gifts.