Made of high quality-plastic, it-is solid, and good performance-, long service life. Assisting teachers and parents in better physics teaching. Enrich children's , cultivate hands-on ability, and consolidate knowledge. Let kindergarten children and elementary school students learn physical knowledge, hands-on to form a simple circuit, series circuit, parallel circuit. Electric circuits kits is a great start for introducing kids to basic electronics ,cool experiments and electrical circuits. . Kids can have great fun and get familiar with circuits with real circuit components and clear illustrated manual. Hot wires electronics kit help to develop children's imagimation,creativity, self-learning skills and hands-on ability, guide them to come up with more innovative ideas. Kids Circuits require 2 AA batteries(not included).Age 6and Recommend. Note: The color of the accessories is random and not specified. Please read carefully before purchasing. It contains small accessories and objects, and children should be accompanied by adults to complete it. Please of children and avoid swallowing. Need to be assembled by customers Colour:Yellow Material:plastic Package Contents: 1x Basic circuit kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.