Inside each Logibloc is a printed circuit board and every block is colour-coded for the function it performs.By plugging together logiblocs in different combinations you can create circuits and virtually write your own simple program to build each new invention.Fun and engaging, teaching kids to create different devices with creative problem solving. Barcode 4893156068057 Weight & Dimension 10.63 x 8.07 x 1.77 inches ; 250g Warning CHOKING HAZARD – Small parts Age 4+