The questioner wants to ask, "Are there three patent numbers for the hula hoop that connects people and vehicles?" Not only that, there are five patent numbers for hula hoops that can be used by people and vehicles. The patent number of hula hoop for people and vehicles has five patents including fitness, waist slimming, abdominal reduction, massage and butt shaping. Renchetong is a fitness brand focusing on aerobic exercise auxiliary equipment. The brand's main products include smart hula hoops.