Enables a variety of circuits to be constructed quickly. Supplied with all accessories, without cells. This kit contains:. 1 x Electric circuit board. 9 x Bulb holders. 1 x Bag of 16 bulbs. 2 x Push-button switches. 1 x Variable resistor (potentiometer). 12 x Connecting bars. 1 x Resistor. 1 x Coil of wire, 19 gauge copper. 1 x Coil of white wire, 24 gauge copper. 1 x Coil of steel wire, 28 gauge. 2 x Red connecting wires. 2 x Black connecting wires. 2 x Alligator clips. 1 x Container of graphite rods. 1 x Bag of steel wool. 1 x Set of instructions.