The balance ruler for classroom use is a must-have for physics and mechanics education. This wooden lever measuring instrument helps students grasp the concepts of force and balance through hands-on activities. By using the hooked end to attach weights, learners can conduct experiments that demonstrate how different forces interact on a lever, enhancing their understanding of physical principles. Features -Color:Yellow -Material:Wood -Size:56.00X3.50X1.00cm/22.01X1.38X0.39in -Ideal for physics education: this wooden lever balance ruler is ideal for middle school physics mechanics experiments, making it an essential learning tool. -Versatile hook design: the attached hook allows for easy hanging and diverse applications in various physics experiments. -practical wooden construction: made from wood, this lever ruler is built to last, ensuring longterm use in learning settings -Visual learning aid: provides a clear and visual representation of balance principles, enhancing students' understanding of physics concepts -Portable and convenient: its compact size makes it easy to carry and store, ideal for use in classrooms, labs, and Package list: 1 x wooden lever ruler