There are a number of wrenches described as “universal.” Most of the time, that means you’re actually just getting a bunch of smaller wrenches or sockets built onto either side of a handle. Using the functionality of a camera aperture as his ideation starting point, Seattle-based designer Jordan Steranka has developed a conceptual wrench that could fit any size nut. Using a dial on the side of the wrench, you can change the size of the aperture to fit your nut before locking the aperture into place. There’s even a lighted ring around the aperture mechanism itself so you can see what you’re working on. Unfortunately, the wrench that’s as pretty as it is functional is only a concept at this point.