SS-350 BD Trailer Hitch Safety Device Preventing Accidental Separations "Peace of Mind" Security when left Unattended and AttachedMADE IN THE USA Made in the USA all steel fabrication with requires no Modifications to Towing Vehicle or Trailer Connector All Hardware included for installation Simple installation with Pipe Wrench and Cresent Wrench (Self Install) Prevents Accidental Separation from Towing Vehicle and Security While Left Attached and Connected Full Range of Motion with Step Washer included that allows turing in operation of product