Each tile has acrylic jewels to add to the sense of treasure. There are squares, rectangles and triangles to make patterns, shapes and sequences. A lovely way to learn about shapes and their properties. The set stores neatly into the wooden box. There are round corners for safety. Set includes 26 pieces. Size of square 30cm, triangle 40cm. Made from Birchwood ply. Suitable for ages 3yrs+.