Kids can use their imagination to combine Snap Circuits with ordinary building bricks and make endless combinations of construction and circuitry. With patent-pending, Bric-2-Snap technology, kids can wire up their brick builds with Snap Circuits lights, sounds, moving parts and 3-D circuits to invent almost anything and make it go!Kids love to create and invent from what they have at home. Instead of just building a structure, now kids can learn how to build the circuit that makes the lights on a skyscraper illuminate or that makes the gears on a drawbridge move! Elenco’s team of engineers has come up with a great way for kids to Learn By Doing and be creative with their everyday, building bricks. There’s no limit to what kids can create with Snap Circuits BRIC: STRUCTURES!Includes:• 20 Snap Circuits component parts• 75 Bric-2-Snap adapters• Over 140 fully compatible building bricks• Full-color, easy-to-read project manual• 3 AA batteries required but not included