Where can I find square shoes to knock on the back?

It's sold online. You can find the product links of square shoes knockback on major e-commerce platforms, including Taobao, JD.COM, Tmall and other online stores that specialize in selling handicrafts and cultural products, and also provide customized services for knocking on the back of square shoes. You can choose according to your personal needs. Among them, some online stores that specialize in selling handicrafts and cultural products will also provide customized services for square shoes, which can be selected according to individual needs.