Feature:1. Assist teachers and parents with better physics teaching, practical accessory.2. Enrich children's leisure life, cultivate practical ability, consolidate knowledge.3. Let the kindergarten children and primary school students learn physical knowledge, start to form a simple circuit, series circuit, parallel circuit.4. Powered by 2pcs AA battery (not included), add more fun for you.5. Special designed for children above 4 years old to play, wonderful gift.Specification:Condition: 100% Brand NewItem Type: Series Parallel Circuit Toy Material: Plastic Battery: 2pcs AA battery (not included)Suitable Age: Above 4 Years Old .Package List:2 x Battery Box 1 x Switches 4 x Bulb 6 x Wire 2 x Circuit Board