A strap, band, belt, rope or chain connected to a chastity cage to hold the cage in place. May wrap around the waist or connect to a corset or other clothing or piercing.
Not to be confused with a chastity belt, which is a single device that wraps around the waist and under the crotch. In some images a separate strap wraps around the crotch to hold a butt plug in place. If the chastity belt is made of straps connected to a cage then all tags apply. Not to be confused with crotchless panties, a codpiece strapped to armor or a penis sheath with straps.
If a harness or shibari looks connected to the cage then you can use this tag, but if it clearly goes around the cage then don't use it.