俺買的是這種。。。

https://www.google.com/search?q=cervical+traction&espv=2&biw=1920&bih=897&site=webhp&tbm=isch&imgil=JBIWZxqJlBe96M%253A%253BzCx7OvuDEohfHM%253Bhttp%25253A%25252F%25252Fwww.amazon.com%25252FNeckpro-Overdoor-Cervical-Traction%25252Fdp%25252FB003DLV9IU&source=iu&pf=m&fir=JBIWZxqJlBe96M%253A%252CzCx7OvuDEohfHM%252C_&usg=__TqEvEianrwyVNnOa6PBJLQKLKpc%3D&ved=0ahUKEwi7pKSMi5LLAhUBF2MKHb0hCBwQyjcIYA&ei=QYTOVvt_ga6MA73DoOAB#imgrc=JBIWZxqJlBe96M%3A