The developed electrical circle - 500

500 Electronic Block Developed electrical circuit set for children from 6 years old + Product features: Simple and easy: does not require any tools or experience Safe: electrical parts are fully covered with plastic material to prevent direct contact with your hands so you can play confidently Helps your child learn and understand electrical circuits of various types (sound, light, movement....) without exposing them to danger Note: To operate the product, you need (4 AA batteries) - not included in the product.