Brand New and High quality.Build 6 different models.Easy to assemble by following the step in instructionDiffers from other tropid model toys， they will move after assembled.Solar energy provide motive force.Do not need screws， so no tools is employed.Teach through lively activities.Solar battery life-span: 3-5 years.Material: Polyethylene.Safe and durable.Suitable for ages 10 Solar toy can be assembled:Solar CarSolar PuppySolar AirboatSolar PlaneSolar WindmillSolar Revolving PlanePackage included:1 set of assembling solar toy kit1 x English Manual NOTE: This kit include small parts， not for children under 3 years in case of choking hazard. The children under 10 years must accompanied by adult.