Summary

• Print 1 "CMR - Handle" part.
• Print 2 "CMR - Roller" parts of your choice.
• Press 2 608 bearings into the "CMR - Handle"
• Press each "CMR - Roller" through the center holes of the 608 bearings.
• Refer to the assembly animation which corresponds to the previous two steps, if needed: https://youtu.be/33PbiLujRRM
• Massage your cat.

You can hold the handle in different places to change the applied pressure or amount of bending in the arms connecting to the rollers.