With over 120 different parts, tools, and light-up components this open-ended set is the perfect building toy to challenge young engineers. The battery-operated light components feature four modes, on, off, pulsating, and blinking. Lights change color with transparent caps of a variety of colors included in the set. Batteries are included.
WARNING: CHOKING HAZARD-Small parts. Not for children under 3 yrs.
Age: 3 and up
