Wang Kang, a 25-year-old office worker from Shanghai, China, surprised his colleagues a few days ago, when he came to work wearing a home-made Iron Man suit.

It happened on June 3rd, 2011. Kang walked into his office building wearing a metallic-looking costume and was immediately stopped by security. After explaining to them that he was actually an employee there they allowed him to go through to the office area where all his work mates stopped what they were doing and stared at the real-life Iron Man that just walked in. Everyone was speechless at first, but proceeded to congratulate Wang Kang for his incredible achievement, and started taking pictures. One of these ended up on China’s Twitter-like platform Weibo, and the young self-taught costume maker became an internet sensation.

Wang Kang got the idea of making his own Iron Man costume after seeing the 2008 blockbuster starring Robert Downey Junior, but actually started working on it on February 26, 2011, right in the living room of his rented apartment. The costume is mainly made of high density foam, wires and tubes, for which he only paid 3,000 yuan ($460). It also features the famous arc reactor which he made from glass. The whole thing took him three months to finish, but the reactions on his colleagues’ faces were totally worth the time and effort. After the office test, Kang took to the streets where he left everyone stunned, as well.

Photo via Weibo

The realistic-looking Iron Man suit created by Wang Kang is around 1.85 meters tall, weighs 50 kilograms and is relatively easy to put on. Its creator says it takes him about 10 minutes to slip into the body armor.