Absolutely worthless--you can still push and turn to open!!!
I would put zero stars, but that's not an option. You would think these would keep your medication safe, right? Problem is that you can still push down and open the cap--even with the lock engaged. Complete waste of money. Unfortunately for me I didn't discover the problem until the refund period had past. Fortunately for everyone, no one died as a result of my use of a faulty product.
Rating: 1 stars