Young Builder 350 piece block set. This Australian made assortment of coloured bricks & faces also features ten young builder project cards. The Little Architect - Construction System is simple to use and features a unique, easy locking mechanism. These easy to use bricks permit the construction of wonderful patterns and structures that will provide children with hours of fun and enjoyment while enhancing important creative thinking, problem solving and fine motor co-ordination skills. Young Builder 350 contains 10 easy to follow instruction cards. The Little Architect activity cards provide ideas for getting children started with their own creative building projects. Comes in lidded plastic storage tub. Suitable for 3+