Features 1、VERSATILE TOOL: This instrument demonstrates the conversion of kinetic and potential energy and the conservation of mechanical energy, showcasing various concepts. 2、EASY MAINTENANCE: After use, simply apply rustproof oil(without) to the swinging roller for long lasting durability and performance. 3、STAINLESS STEEL MATERIAL: Made with premium stainless steel material, these tools are operated with superior durability and a visually appealing display. 4、INTERACTIVE LEARNING: Engage students with a gravity potential energy kinetic energy conversion demonstration equipment, making learning more dynamic and hands on. 5、RELIABLE AND EFFECTIVE: This equipment set provides a reliable and effective means to clearly illustrate the transfer and conservation of mechanical energy. Specification Item Type: Potential Energy Conversion Experiment Material: Stainless Steel Package List 1 x Wheel 2 x Riser 1 x Crossbeam 1 x Wire 1 x Base