DESC: We are fully charged up about this outstanding educational set! Electronic Snap Circuits Jr. contains 30 different and clearly identified electronic components, such as switches, integrated circuits, snap wires, resistors, and more. The accompanying book is very clearly written and illustrated, and will guide you safely through the completion of up to 101 different projects! Learn about how electronics work as you construct a sound-activated switch, a 'space war' alarm, a blinking flashlight, and dozens more. The pieces easily disassemble for reuse as you work your way through building and rebuilding these fascinating gadgets. For ages 8 and up.