Easily attach to any door to enjoy some bondage fun. Just place the 2 acrylic tubes over the top of any open door. place the other 2 under the bottom. close (and lock for safety) the door. Bind your partner and enjoy. Comes with 4 adjustable tethers. 2 velvet wrist and 2 ankle cuffs. 4 acrylic door jam tubes and a satin eye mask.