4M Fun Mechanics Kit: smart cleaner kit Build your own smart cleaner with this kit from 4M . Help your parents in the household with the automatic cleaner. The set has detailed instructions to help you during construction. specifications: Color: multicolor Material: Plastic Gender: junior Package dimensions: 22 x 17 x 6 cm Suitable for children over 8 years. Powered by 2 x 1.5V AA batteries (not included).