Review (4/5): Definitely not an activator, but works in-a-pinch
Being able to make self-adjustments when a trip to the chriopractor isn't possible (e.g. away on vacation), this unit fits the bill. It's definitely not a standard activator though. Still, a decent price. I did pick up a second unit just to have a spare on hand. Not sure how long these will last or how high quality the internal spring mechanism is.