Chastity and orgasm denial discussion

I’ve come across male chastity gadgets that include urethral inserts, and I was curious whether they offer better security. Looking at the device in the link below, I honestly can’t see how someone could pull out if the ring is fitted tightly. It seems like the urethral insert stops the penis from bending enough to slip out of the section where the cage meets the ring. Being small myself, this type would suit me well; with that urethral insert locked in place, I think it’s practically impossible to escape. Even trying to pull out would likely be a painful failure.

Are these kinds of devices generally much more secure?