Specifications:In the process of hands-on experiment, stimulate the desire to learning.Develop children&39;s thinking and hands-on ability.Guide children to understand circuit diagrams, be familiar with circuit changes, master circuit rules.Item Name: Electrical Experiment Equipment SetMaterial: ABSBox Size: 22cm x 13cm x 5.5cm/8.66" x 5.12" x 2.17" (Approx.)Notes:Due to the light and screen setting difference, the item&39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:2 x Small Lamp Holders1 x Single Pole Single Throw Switch2 x Single Pole Double Throw Switches1 x LED Diode2 x AA Battery Boxes1 x Hand Crank Generator1 x Car1 x Electromagnet1 x Compass1 x Large Windmill1 x Small Wrench3 x Small Bulbs10 x Wires1 x Screwdriver1 x User Manual