Material：The product is made of Nylon,very sturdy,velcro used to adjust the size of the product on the wrist.Velcro will not harm your skin.Restraints Your Lover：Sex Bondage can control your partner’ hands and legs well,let you do whatever you want, getting some light SM feeling from this sex toys to spice up your sex life.Adjustable：The restraint kit is adjustable,easy to adjust its tightness for wrists,suitable for you and your lover perfectly.Easy for Storage and Travel：The Handcuffs for adults is lightweight for easy storage and keep privacy. You may also travel with it and turn any ordinary scene into an bondage playground.Discreet package with a black bag：Having no worry about others find your little secret. You can buy this BDSM restraint sex kit as a intimate gift for your lover and just enjoy night.