Description 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 XX. Suitable for children ages 3 years and older. Details Weight: 0.57 kg. Dimension: 4 * 10 * 4 cm Brand For more than 30 years, PlanToys has been consistently developing its products and activities with a strong commitment that a company could ever made to contribute positively to the world.