1. Some well-known brands of internal height shoes, such as Hu's, Playboy and Laorentou, all have their own stores or counters, where they can buy internal height shoes that meet the demand.

2. In Zhengzhou, you can buy inner height shoes in some shoe stores. If you need shoes with height within 12 cm, go to a shopping mall or shoe store in Zhengzhou to find a shoe store or area with special height to buy.