This shape sequence includes four different geometric shapes and colour blocks to let children play & learn by sorting them in the matching shape holes in the box sorter. It can also be used as a set of blocks for building and creating, learning counting and even for imaginative play. The quality sorting board comes with 16 wooden blocks of squares, triangles, circles and rectangles in increasing heights. The recommended age is 2 years and up. Measurements of the product are 17,7 x 17 x 9 centimetre.