Wish reviews your products to make sure they comply with intellectual property (IP) law. If Wish flags your products as inappropriate, they'll be removed. You can take a look at Wish's prohibited product listings here.
Once your Wish store becomes a part of their Trusted Store program, Wish will no longer have to review your products, they'll be available for sale right after you list them. Find out how to become a part of the Trusted Store program here.