20+ Fun Circuit Design Projects included but there are much more innovative ways to connect our blocks 
5 Sensors including Light Sensor, Magnetic Sensor, Touch Sensor, Rain Water Sensor and Soil Moisture Sensor 
Specially designed with Real Life Scenarios to make it joyful and engaging for elementary school kids 
Toy Gift for kids, grandkids, birthdays, and special occasions 
Everything is included. No other tools or external batteries required.