The side of the square is 13 cm, and the side of the triangle is 12 cm. 10 shades of colors, piece have the same color on both sides, which distinguishes this set from the previous ones. The photo shows the whole set – 12 triangles, 18 squares. Box 40x30x7 cm. There are no instructions for this set, only a few of the simplest samples on the box. The set is perfect for the smallest builders – the details are large and even a simple house will be very solid. Also a great addition to existing Magformers sets. The big triangle is fully equal 4 small triangles put together, and the big square equals 4 small squares. You can see the details on the photo below.