Sunnytech Steel Balance Physics Toy Weightlifter Kinetic Solar Plane Aircraft WJ161-WJ155

Features: Model: WJ161Principle: Not only demonstrates of balance, but also shows the Laws of Conservation of Momentum and Energy Size: Height 21cm * width 19cm/ 8.26in * 7.48inMaterial: metal---- please measure the size with ruler instead of image the size in mind Features: Model: WJ155 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: 200g / 0.44 lb.

• WELL-MADE---- Most of material is silver stainsteel. Chromium plating process, the functional mainly reflects in wear-resisting, has a smooth surface, will not rusty and fade. Ingenious designs and unique style, let you own your attractive desk decoration. Size: Height 21 cm * width 19 cm/ 8.26 in * 7.48 in . Please measure the size with ruler instead of image the size in mind.
• BALANCED---- It's balanced on the weightlifter one leg, which makes you feel really incredible, you can give the weightlifter a gentle push to make it work, slow down the speed when time passed and finally stop. You don't have to worry about it falling off, it can be well keeping balance. Push the weightlifter lightly, it will rotate 360° around the center stand balance. The toy continues in perpetual motion for ONLY 2-3 minutes due to the resistance of the air and friction.
• HELP YOU RELAX---- It’s a neat focal point to destress after a busy day of working. When you get bored and feel there is too much pressure, you can put it on your desktop, start it, quietly watching its fascinating swings, it will be fascinating to you. It can kill time and help you relieve stress.
• 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.
• MULTIPLE PURPOSES---- It is a great toy. It’s a great educational item to assist children understands the solar power. It can be used as a teaching tool and also decorative item for home, office and car. It's proven to be a conversation starter to impress your visitors. When you give the solar panel a little sunlight, the windmill blades will rotate. All of your guests want to know what happened, icebreaking success.