Experience the fascinating physics of motion with this Perpetual Motion Machine, a captivating desktop toy designed to demonstrate the principles of pendulum motion, momentum, and energy conservation. Crafted from durable iron and plastic materials, this innovative device uses an initial external swing to activate battery-powered energy that keeps it swinging continuously until the battery is depleted. Key Features: · Educational Science Demonstration: Clearly illustrates the laws of momentum and conservation of energy, making it an engaging tool for learning and exploration. · Stress Relief Desk Accessory: This mesmerizing perpetual motion toy adds a touch of art in motion to your workspace, helping to relieve stress and boost focus during work or study. · Durable Construction: Made with sturdy iron and plastic, ensuring long-lasting performance and stability when placed on any flat surface. · Easy to Use: Simply place the device on a stable table and give it a gentle swing to start the continuous motion powered by the internal battery. · Versatile Application: Ideal for home, office, or classroom settings, providing both entertainment and educational value. · Perfect Gift Choice: An excellent gift for children and science enthusiasts to inspire curiosity and encourage exploration of scientific concepts. Specifications: · Item Type: Perpetual Motion Machine · Material: Iron, Plastic · Gross Weight: 318g / 11.2oz · Product Principle: Initiated by external swinging force, sustained by battery-powered energy until battery depletion Package Includes: · 1 x Perpetual Motion Machine Add a dynamic and educational element to your desk with this perpetual motion desktop toy that combines fun, science, and stress relief in one unique package.