Luomanlin's cosmetic grade is low. According to relevant public information, the price of a set of cosmetics for Romanlin is between 450-500 yuan, which belongs to high-grade cosmetics. Cosmetics are divided into five grades according to the price, and the standard of high-grade is that the average single product is close to 1000 yuan. The medium and high-grade standard is that the average price of a single product is greater than or equal to 500 yuan. The mid-range standard is 200-350 yuan per item. The medium and low standard is the average price 100-250 yuan. The average price of low-grade standard is below 100 yuan.