ABOUT SNAP CIRCUITS: Use building blocks with snaps to build different electrical and electronic circuits in the projects. Each block has a function: switch blocks, lamp blocks, battery blocks, different length wire blocks, etc. They are color- and number-coded for easy identification. The circuit you will build is also shown in colors and numbers, identifying the blocks you will snap together to form a circuit. Requires 2 AA batteries. Dr. Toy 100 Best Children's Products Winner. Ages 8 to 108.

Snap Circuits 300 provides enough materials to build over 300 exciting projects.

WARNING: CHOKING HAZARD--This product is not for children under three years of age because of choking hazards (small parts).