Material:PlasticsColor:WhiteSize:(L)X(W)X(H)11X11X38cm/4.33"X4.33"X14.96"(appr.)Dia. of transparent tray:8.5cm/3.35"Speed:20 Ring/MinuteLight:More than 500LUXPackage included: 1 Set Windmills ModelFeaturesBrand New and high quality.Made of plastic material,environmental protection and durable in use.Suitable for children aged more than 8 years old.A puzzle toy to exercise the child's ability,stimulate children's curiosity and thirst for knowledge, but also a fashionable and nice home, office accessories.It also can be modified as a solar display stand,take off the connecting rod and put a transparent tray instead,then it comes to be a rotating display stand,which can show jewelry,mobile phones,camera,cigarettes,glasses,etc.Easy assemble and do not require glue and battery.Best gift for sending for your friends or parents.Hurry up to try it and enjoy your shopping time.Note:The solar energy toy series must be driven by the sunshine.there are 3 methods to drive:1.The sunshine2.The strong light flashlight3.Bathroom heat lamp.It can rotate with weak light, it rotate faster with the strong light.Installation:Step1:Take out the bottom base and put it on the desk.Step2:Connect the plug adaptor of the bottom of the connecting rod to the bottom base.Step3:Connect the sails to the sails box,then the solar windmill installation completed.If want it to be a solar display,just take off the connecting rod, and put the spared transparent tray instead, then finish the installation of the solar display stand.Notice:Please allow 1-5cm error due to manual measurement and make sure you do no