Yugui hasn't heard of it, but he knows that China's ancient foot stickers are deceptive tricks. He knew a lot of people and bought a lot, but it was useless. In the end, it all became garbage, and there was no place to return it. Factory procedures and so on are all forged. Don't lie. The foot patch market is quite good recently. Many unscrupulous businessmen set up black workshops without hygienic conditions, produced inferior foot stickers with chemicals, and then fabricated their own names to get some false information to deceive people. Don't be cheated.