USB Lead Lamp Stem Clip, 20mm, parametric

Holds a USB lead onto a 20mm lamp gooseneck to make it easier to find. I keep it on my bedside lamp so I can charge my phone at night without having to fumble around behind the bed to find out where the damn charger lead has gone to this time.

Two prongs stick up and stop the USB plug from falling out.

The source files are for a 4.5mm diameter USB lead, but the design files are fully parametric so can be modified to fit most convenient circular objects.