The cuffs and blindfold feature a quality velvety soft lining so they are comfortable while sturdy. Unlike metal handcuffs, these soft cuffs won't hurt. With 44" of straps to work with, they will tie to almost any sized bed to bed posts, legs, or bed frame. The cuffs use velcro which makes strapping in your partner easy and tight so they won't slip lose if they try to escape. If you are curious about bondage, this kit has everything you need to experiment with and get into the thrilling experience! An essential item for Christian Grey fans.