Cable grommet for Ingatorp drop leaf desk

This IKEA Ingatorp drop-leaf desk did not come with a grommet. I couldn't bring myself to just have the cable go straight into the bare pass-through. A few minutes on Fusion solved the problem.

Easy print: 3 perimeters and 15% infill should be plenty to get a strong part. 

The desk itself is now discontinued but it should work for any 55mm diameter hole.