The chastity piercing in women means almost always a closure of labiae piercings (labia lock). The rings of the inner or outer labia can be used for closure. Either by closing the rings (they then have to be strong and can no longer be opened by hand), or directly with a lock that is threaded directly into the piercing holes, see locks from Lustlock. They should be light, skin-friendly and moisture-resistant, and with rounded edges.

In the case of the labia, several rings can be closed in parallel with an overly long lock shackle.