Double wheel version remove the front wheel can be changed into a single wheel version

Hidden rear wheel can be changed into normal shoes

Installation method: 1. Install the front wheel: just press hard 2. Remove the front wheel: pry gently with the small spanner delivered 3. Put the rear wheel on: push the cover off the rear wheel Press the heel button and the rear wheel will pop up automatically 4. Rear wheel retraction: Hold the heel button down continuously