This wooden building set is suitable for 4 year plus. In order to make something of the shapes and designs, young children would need help from an adult to begin with. It is always advisable that an adult to supervise and enjoy the interaction of children with this wooden toy building set. Safe and Environmentally Friendly: Toy safety and children’s happiness are our top priorities. We make our wooden toys with pure love and care for our children and the environment. Our wooden toys are made of sustainable wood with environmentally friendly and non-toxic paints. It conforms to EN71 and CPSA Standard and is tested and is certified by International Accredited Labs. We are committed to customersâ€ total satisfaction.