Electric Circuit Kit Kids Student School Science Light Bulbs Toy Educational DIY Features: Enrich children's leisure life, cultivate hands-on ability, and consolidate knowledge. Assisting teachers and parents in better physics teaching. Let kindergarten children and elementary school students learn physical knowledge, hands-on to form a circuit, series circuit. High quality and new. Batteries included Specification: Color: Black (As Picture Show) Material: Plastic Package Contents: 1 Bulb Holder 1 Battery Holder 1 Bulb 1 Conductive Line 2 clip Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.