Extra large knobs make it easy for small hands to remove each of the brightly colored geometrically shaped piece. Under each piece is a realistically illustrated, similarly shaped object. Kids learn to recognize shapes in their environment, as well as develop matching skills and improve dexterity. This super-sized solid wood puzzle with extra chunky =' thick pieces is a perfect first puzzle. It measures 12' x 16', and is recommended for ages 2 to 4.