Description

It was made to hang objects at a hook which is divided into both sides with a central point of 1000mm of the arm as a standard, and it allows to keep the balance by a balancer to adjust balance at the bottom and head, and by making a balance adjustment bolt at the bottom part. Also each end of assisting arm of 1060mm, it is attached with a perpendicular ruler, which allows you to know the slope degree. There is an angle measurement board at head. The body arm can be disjointed when you do an experiment of various lever experiments and dynamics experiments, and helps you to a settled experiment by using hooks at assisting arms. At central spindle of the arms, it minimizes rubbing resistance by using bearing which makes the operation soft and smooth. Also it can be used while attaching to a magnetic blackboard.