Is there such a thing as detachable rollerblades?

It’s an idea I came up with a while ago while writing a story. Inline skates with a wheel frame that can be detached and clicked back on at will, so they can double as regular shoes.
Does anything like this actually exist? Is it feasible? If so, I want a pair. :D

This is part of a long-standing interest of mine in portable modes of transport that don’t get in the way when you aren’t using them.