Product dimension (L*W*H CM): 15*6*4
Inner packs dimension (L*W*H CM): 18*17.6*5.2

It is usually combined with inclined plane trolley, sparking-describing instrument and hook code group to do experiments, such as uniform linear motion, motion with constant acceleration, Newton’s Second Law, motion of a free falling body, kinetic energy theorem and law of conservation of mechanical energy.