Bondage frame
From wipipedia.org
A Bondage frame is a strong, usually steel frame designed to provide an overhead fixing point for bondage. Due to their size they are usually found only at clubs and in purpose built dungeons. Simple frames are based around an upright square with a wide base for stability. More versatile frames are based on cubes with multiple fixing points for winches, slings, and suspension bondage.
It is possible to construct bondage frames that can be quickly dismantled for storage using scaffolding.
