Fantasy restraints system come with 4 tether/straps, 2 hand cuffs, 2 leg cuffs, and free eye mask. This is intended to be used on your bed. (**Do not try to attach this to something it is not designed to be attached to. Doing so may result in harming yourself or others involved.) Just adjust to the size of your bed, lift the mattress up, and place the single tether (the one without the key ring with attached cuffs) in the center of the bed. Make sure that the tethers with the attached cuffs “Y” out on each end of the bed. Drop the mattress down and bring the cuff tethers up. Then enjoy the Fantasy Restraint System to the fullest. This is your fantasy make the most of it.