The award winning Laser Pegs is the first unique toy construction set in which each piece feeds the next piece low voltage current. You can design any lighted abstract model. Laser Pegs can be used lit up or turned off. The Butterfly kit makes 12 different models and more. Includes 20 LED illuminated Laser Pegs, 68 construction parts, power base and power lead. The ultimate construction toy for kids. Laser Pegs pieces are compatible with other major building block sets, so you can add colourful light to your favourite toys for endless creative possibilities. One supplied. Batteries required: 3 x AA . For ages 5 years and over. WARNING(S): Not suitable for children under 3 years old. Only for domestic use. To be used under the direct supervision of an adult.