Sunnytech Steel Physics Toy Kinetic Art Balance Toy Solar Aircraft Plane Black Propeller WJ149-WJ156

Features:Model: WJ149 Total height: 175mm / 6.89 in The distance between two balls: 175mm / 6.89in the base length: 115mm / 4.53in Gross weight: 280 g / 0.62lb Material: silver steel. Packing: in box. Package Content: 1*toys 1*base Features:Model: WJ156 Principle: Not only demonstrates of balance, but also shows the Laws of Conservation of Momentum and Energy. Size: check the gallery picture Material: Metal+ + Solar panel Product Net weight: 200 g / 0.44 lb.

• HOW TO PLAY---- Let the steel little guy stand on the steel cylinder base, and give it a gently push. You can let the little guy stand on only place, but please try carefully and slowly, just avoid any drop and break, it is proving the scientific theory and mesmerizing you for hours. Fair warning: it's totally addictive. Sizes: 6.89in (w)* 6.89 in(H) in . Please measure the size with ruler instead of image the size in mind.
• SWING TIME---- Most of material is silver steel, has a smooth surface, will not rusty and fade, always looks as good as new. The toy continued in perpetual motion for ONLY 2-3 minute due to the resistance of the air and friction.
• BALANCE TOY---- One-legged Hercules, holding up two big steel balls with two hand, swinging merrily when the wind blows or touches them lightly, but it's a bit difficult to get it to fall. It's very balanced, like a tumbler. It can stand in a lot of places you unexpected, such as hand, vehicle and so on.
• SOLAR POWER---- It's solar power toy. NO sun, NO work. It only works under directly sunlight. It's balanced on a tiny screw, put it under directly sunlight, then black propeller will run madly and drive the aircraft rotate 360° around the center stand with balance. You don't have to worry about it falling off, it can be well keeping balance. Very interesting. It can't work under the Interior lamp, like flashlight and cell phone flashlight.
• GRACEFUL AND QUIETLY---- Powered by the solar energy panel, no battery or electrical outlets needed. Eco-friendly, the windmill blades turning smoothly and quietly under the sunlight.