The rack was missing the screws . UPDATE: I can put an index finger in the back of the shoe when I push my foot up. 5 so I went up a half size bc I planned to wear with socks leaving the gym after yoga or swimming. I would not recommend wearing without socks Veeeeery nice. I found this! if the battery life is as advertised i will be happy, but not needing batteries makes up for that easily. They are definetly worth the money. I didn’t expect super high quality with these, but the front of the shoe ripped within days of just wearing them around the house. I read loads of books about things Im not familiar with, but from which, through the skill of the author, I infer a sense of authority.