Suspension bondage
From wipipedia.org
Suspension bondage is a BDSM technique where one person is restrained in ropes, handcuffs, or similar equipment and then suspended in the air by use of ceiling hooks, beams, or specially designed structures. This provides some dangers, and suspension should not be done by the neck or by a single limb. Suspension should be tied to as many limbs as possible, and the body, to avoid danger of asphyxiation, blood being unable to reach the limbs, or anything else.