buying tips for beginners

Hi I have a holytrainer v2 but it doesn’t meet my expectation at all. I am using the smallest ring already but I could still take out my penis easily with the cage locked up, it doesn’t serve the purpose, I want to stop masturbation. It looks like other cock cages of other brands are more or less likely the same in terms of the design. Is it all chastity cage actually a gimmick and does not even serve the basic need---- stop masturbation?? Any chastity device that is really no way of taking out the penis?? Except piercing please. I don’t like piercing