{HEAD ~ a first lever section} including a cylindrical body using {TAIL ~ the rotation axis} as its rotation center, and a first lever having a turning radius projected from the cylindrical body 
{ HEAD ~ a first lever section } including a cylindrical body using { TAIL ~ the rotation axis } as its rotation center , and a first lever having a turning radius projected from the cylindrical body
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH