Okay, we know that wolverines are a real animal, and not just the name of the retractable-claw-adorned mutant from the X-Men comic books and movies. But we found this guy who made himself retractable claws.

Wolverine is one of the most popular characters in the X-Men movies. Hugh Jackman stars as the gruff, Canadian superhero in the latest entry, X-Men: Days of Future Past.

In the movies and comics, Wolverine is outfitted with indestructible, foot-long blades that he can make jut out of the back of his hands whenever he feels like, usually when he’s angry, which is usually quite often.

An amateur British inventor named Colin Furze has made a set of real, working Wolverine-style claws. Stored in little metal boxes strapped to the back of his arms, the blades are 12-inches long, made of stainless steel, and are extremely sharp. Furze can make them extend in a fraction of a section by pressing a trigger, which he surreptitiously holds in the palm of his hand. The whole system is powered with a compressed air setup, which Furze wears in a backpack when he’s playing Wolverine.

They are, in fact, stainless steel. We’re pretty sure Furze just invented Wolverine claws and didn’t also invent adamantium, the mythical metallic material of which Wolverine’s mighty claws are supposedly made.

Want more weird inventions? Check out Uncle John’s Bathroom Reader Weird Inventions.