make a lever with physic ? hinge or spring joint ?

hi guys , i wanna make a lever kind mechanis in unity ,

something like this , when i pull the left rod to the left, the right one that is connected to it from top , come down , the left rod pivot is at top right and the left on at bottom, i didnt know that unity got some physics for joining the objects like that like the pulling rope, but now that im newe in unity physic , would anyone tell me tha which joints i should use for this mechanism thanks and more..