Very simple vacuum cleaner trigger lock. No additional materials needed. Holds very well due to the tight fit between the finger rest and the sloping bottom of the container. I expect minimal wear due to the default position without load. The force required to pull the trigger has hardly changed. Release of the trigger requires minimal upward movement. The temporary trigger function is retained. The minimalist design tries to maintain sufficient finger space.

To test:
- Too difficult to squeeze the trigger
- accidental release of the trigger
- complete drop-out of the trigger lock

Printed with PLA, 3 walls, no infill.