CONSTRUCTIVE PLAY: Stack the rocks without letting them fall! Can your children maintain the structure's balance while stacking all of the rocks provided? SUPPORTS DEVELOPMENT: Strengthen fine motor skills, hand-eye coordination and concentration ability through play. While interacting with others, develop communication and social skills. SOCIAL PLAY: The GEO Stacking Rocks encourage interactive play - inviting children to playfully compete against one another to see who can keep the structure steady and stack the most pieces! As a result, language and relational skills are enhanced. INCLUDES: 6 wooden rocks with. Suitable for children ages 3 years and older.