Fun and educational: Newton's pendulum is a great tool for students to understand Newton's laws of motion and for teachers to use in physics classes. Longer swing time: The resistance of the air allows the balance ball to continue moving for 10-20 seconds, providing ample time to observe kinetic energy. High quality materials: Solid wood base, fishing wire, and stainless steel metal balls make this Newton cradle durable and long-lasting. Desk decoration and stress reliever: This unique gadget serves as a special decoration for your office and home, while also providing a relaxing and stress-relieving activity. Unique gift idea: Perfect for kids, adults, and science enthusiasts, this nostalgic toy makes a great gift for birthdays, Christmas, and other holidays. Introducing the cradle pendulum decoration, a fascinating and educational physics learning tool that brings the principles of Newton's laws of motion to life. This Newton's pendulum is an ideal resource for students to grasp scientific concepts in a fun and engaging manner, making it perfect for classroom use by teachers. With easy installation and a focus on both entertainment and education, this pendulum offers a longer swing time of 10-20 seconds, allowing ample opportunity to observe the kinetic energy in motion. Crafted with high-quality materials including a solid wood base, fishing wire, and stainless steel metal balls and frame, this Newton cradle is built to last and withstand long-term use. The well-designed packaging ensures that the pendulum arrives tangle-free and ready for enjoyment. Not only does this pendulum serve as an educational tool, but it also doubles as a stylish desk decoration. When you need a break from work or want to unwind, the clicking gravity balls provide a soothing and stress-relieving experience. Its unique design sparks conversation and captivates attention, making it an attractive addition to any office or home setting. Looking for a special gift? The cradle pendulum decoration is an excellent choice for kids, adults, or anyone with an interest in science and physics. Item Name: Balance Ball Decor Material: Wood, Metal Category: Ornaments Features: 7 Balance Balls, Black Base, Fun Size Details: L: 23cm/9.06", W: 14cm/5.51", H: 17cm/6.69" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Balance Ball Decor