Count the pieces. Count the holes. Name the colors. The wood base and top layer pieces are screen printed directly to the surface. The top two layers are painted wood and fit perfectly together with the plastic, bottom layer inserts. Durable child safe paint finish and solid, wood construction are hallmarks of Hape toys. Hape's toys stimulate children through every stage of development and help nurture and develop their natural abilities. All Hape products sold in North America meet or exceed all applicable safety standards. For ages 2 years old and up.