This instructive pendulum ball set is designed to facilitate a deeper understanding of physics concepts. It is an essential tool for any physics lab, providing a practical way to demonstrate the principles of motion and energy. The set is and easy to use, making it a valuable addition to any teaching toolkit. Features -Color:Multi -Material:Steel, plastic -Size:2.50X2.50X2.50cm/0.98X0.98X0.98in -Size:2.00X2.00X2.00cm/0.79X0.79X0.79in -Size:1.50X1.50X1.50cm/0.59X0.59X0.59in -Comprehensive experiment support: provides essential assistance for physics mechanics teaching experiments, crucial for effective learning. -Engaging visual aid: the motion of the balls vividly demonstrates key physics mechanics concepts, enhancing student engagement and understanding. - and reliable: made from Excellent materials, ensuring longterm durability and stability. -Convenient ball set: includes multiple balls, designed for easy transport and storage, facilitating flexible use in different instructive settings. - instructive tool: suitable for a variety of instructive and research environments, meeting the needs of various physics mechanics experiments Package list: 3 x steel balls 2 x plastic balls