Big sewing thread spool adapter

I was sewing a bike bag and i realized that the spool of thread i was using was too big for the spool holders i had on my machine so i made this quick model so that the spool would not move around as much. The inside diameter of my spool of thread is around 16mm (5/8in) and the diameter of the holder on my sewing machine is around 5.5mm (7/32in).