Sefen powder is completely different from pearl powder. Lai powder is a common snack in the Pearl River Delta and can be eaten mainly in Foshan, Guangzhou, and Dongguan. Authentic vermicelli is made and sold freshly in-house. The thick vermicelli tastes delicious, but some people from other provinces don't like this taste. Pearl powder is relatively fine and is generally sold in solid form at wholesale and retail. There are many brands and the taste is suitable for everyone. However, after eating it for a long time, I don’t like it much.