This metal Newton's pendulum is the perfect desk toy for the home or office. It also makes a great gift for math and physics lovers of all ages. The gentle click-clack sound of the pendulum as it swings up and down calms the mind while encouraging thought and learning. The precise workmanship of the pendulum and the steel balls ensure that the toy will last for years.
Material: metal; Size: 8.8x7.5x1.2cm; Country of Origin: Mainland China