One of the regular maintenance items for roller blade wheels is to clean and/or swap the bearings, and the most difficult part of that process is removing bearings from the wheel due to the small piece you need to push. I designed and built this tool to make that process a little easier. This tool works with skateboard and rollerblade wheels <90mm. The first and most portable version of this tool can be found on the 3D Printed Home Improvements page. CAD was done in OnShape, and parts were 3D printed on my Ender 3.