Considering buying the study desk of Guangming Yuandi, when is it cost-effective?

Just buy it during the Double Twelfth Festival. There are activities in Guangming Garden. You can look at the Sincere Series of Guangming Garden. Its chair is designed with a back-chasing chair and a patented small C-mouth design, which makes it easier for children to use, reducing the occurrence of hunchback and myopia. During the Double Twelfth Festival, there will be 5% off activities in the live broadcast room, which is more cost-effective. Your adoption is the motivation for my answer.