Vanessa Not sure it is more effective than a chastity belt...
If the goal is keeping attempts at masturbation down and away from boy trouble, it would do the job. Especially if what a girl does outside makes that difficult.
Vanessa I would prefer to be spanked than wearing a chastity belt.But spankings never made me stop masturbating or having sex more than a few days,while the chastity belt prevents it totally.
Depends on the severity and other rules.
A girl wearing a corset and tights locked will have no hope of access to her breasts or anything else. So, if it's what you have, you either make do or do without.