This teaching tool for physical mechanics is designed to meet the education needs of students. It supports goals by providing a tangible way to study forces and motion. The crane model serves as a practical example of how pulleys work, making abstract concepts more and easier to grasp. Features -Color:Light Yellow -Material:Wood -Size:31.00X10.00X10.00cm/12.18X3.93X3.93in -Note: battery is not included -Engaging diy activity science kit: the self-made pulley crane captivates children's interest in physics, promoting hands-on learning and creativity -Full science kit: the science kit provides all the materials required for multiple experiments, supporting comprehensive scientific exploration -Simple to use science kit: easy to assemble and operate, it is ideal for family activities that combine fun and education -Wooden kit: made from safe, durable wood, the kit ensures a secure and long time education experience -Education tool: great for school science classes or home projects, providing a tangible way to learn about physical mechanics Package list: 1 x set of homemade pulley set