Little Treasures Helicopter Solar Model - Helps Children Learn Environmental Responsibility! Build a helicopter that flies, that is powered by solar energy! Recommended for children who are ten years of age or older. The kit includes all of the twenty one safe and durable parts needed to build an actual working helicopter toy. Assembling the model helicopter is just the start of the process  the best part is powering the toy with solar energy! Learning about alternative energy and environmental responsibility is a great side-benefit of this amazing toy!