This custom-made life-size Hulkbuster armor that was built by a 26-year-old teacher in China named Xing Yile. He was obviously inspired by Avengers: Age of Ultron.
It took two months for him to build this thing with the help of an assistant. It’s 3.4-meters tall and weighs a half-ton. They even built a little downsized IronMan as a companion piece.