This 102 piece extra large starter building set is great for beginners through to expert architects. Suitable for those aged 1-8 years, it is based on block system of 4cm x 4cm sizing and consists of 16 square blocks, 14 rectangular blocks, 16 slats, 8 triangles, 4 bridges, 10 columns and 34 special shaped building bricks. This set is compatible with all of the HABA building systems including marble runs, dominoes and My First Ball Tracks and perfect for encouraging healthy imaginations and spatial reasoning.