Perpetual Motion Marble Machine Educational Rechargeable Rolling Ball Perpetual Motion Toys Science

Feature: 1. UNIQUE CREATIVITY: The exquisite perpetual motion design allows you to feel the charm of art in playing and viewing. 2. STRESS REDUCTION AND RELAXATION: Gently push the rolling ball to relieve stress and bring relaxation and peaceful experience. 3. FINE CRAFTSMANSHIP: Crafted with premium stainless steel and ABS material, durable and textured, suitable for long time use and display. 4. DYNAMICS: Through the principle of dynamics, the ball is automatically and continuously moving, which is mesmerizing. 5. HOME DECORATION: Not only a cyclic stress relieving toy, but also an elegant home decoration, adding artistic ambience to your space. Specification: Item Type: Perpetual Motion Marble Machine Product Material: ABS, Stainless Steel Battery Type: Built in 1800mAh 18650 Lithium Battery (Shipped with Built in Battery) Size: Approx. 16.5x10x14cm / 6.5x3.9x5.5in Gross Weight: 626g/1.4lb. Package List: 1 x Perpetual Motion Machine10 x Marbles1 x Charging Cord1 x English Manual Note: All data are measured manually, and there are certain errors in the measurement results.