Experiment with electrical circuits using the Gakken EX-181 electronic block. - Brand: Gakken - Model: EX-181 - Type: Electronic Block - Included: EX-150 150 Circuit Collection, EX-181 31 Circuit Collection - Color: Black - Function: Electrical circuit experiments - Target age: Junior high school students and older All parts are included, but full functionality has not been confirmed. Several copies of the newsletter from the time of purchase are included. Thank you for looking.