Only compatible with Fit's 24mm cranks.
This tool is essentially a large bolt you can use for installation and removal, and it does work slightly differently than a traditional two-piece tool.
For removal, it will require you to back it out and tap it approximately three times before the crank will come off. It is not difficult or time consuming, just different. Remember to use plenty of grease on installation and the correct tools at all times to make things go smoother.