1、Children can learn some scientific knowledge while playing, expand scientific knowledge and promote children's intellectual development. 2、In the process of assembling toys, not only can children's operation ability be cultivated, but also relevant logical theory knowledge can be learned. 3、This is a great DIY educational toy, suitable for children and students to gain a sense of accomplishment and learning knowledge in the entertainment process. 4、Educational toy can exercise hand‑eye coordination and cultivate attention, and can help them learn to think independently, increase creativity and interest in learning. 5、The removable and durable teaching equipment makes teaching simple, so that children's classrooms are no longer boring. 2 x Wooden Board2 x Fan Blade1 x Motor1 x Electrical Machinery2 x Bulb1 x Battery Box1 x Frosting Stick1 x Glue Stick1 x Terminal 1 x Adhesive Sticker Item Type: Wind Power Station ToyMaterial: PlywoodWeight: Approx. 112g / 4ozProduct Size Combined : Approx. 12x9x7cm / 4.7x 3.5x 2.8inBattery Parameter: 2 x AA battery (battery not included)Applicable Age: 5-12 years oldAbility Development: intellectual development