Feature 1Assist teachers and parents with better physics teaching, practical accessory. 2Enrich children's leisure life, cultivate practical ability, consolidate knowledge. 3Let the kindergarten children and primary school students learn physical knowledge, start to form a simple circuit, series circuit, parallel circuit. 4Powered by 2pcs AA battery (not included), add more fun for you. 5Special designed for children above 4 years old to play, wonderful gift.SpecificationCondition: Item Type: Series Parallel Circuit Toy Material: Plastic Battery: 2pcs AA battery (not included)Suitable Age: Above 4 Years Old .wang-edit-text{ font-family:'Arial' important } .wang-edit-text table { border-top: 1px solid 000 border-left: 1px solid 000 } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000 border-right: 1px solid 000 padding: 3px 5px } .wang-edit-text table th { text-align: center }Package List2 x Battery Box1 x Switches4 x Bulb6 x Wire2 x Circuit Board Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.