Start-Up Circuits
$27.50Price
Click together these chunky pieces and then flip the switch to create a spinning fan, a glowing light or a whistling siren! All switch blocks and action tops are interchangeable for mixing, matching and experimenting with actual working circuits in a completely safe way. Includes 3 switch blocks, 3 action tops, instructions and parent guide. Requires 6 AA batteries.
Age 18 months and up