Ability developmentIntelligence development brain training crawling interest cultivation parent-child communication emotions interactive toys graspinghand-eye coordination other ability development vision. DesignBuilding block assemble disassembly toy special designed for children above 3 years to play. Manufacturered by Zerodis. AttentionThe multi-functional nut combination is moderate in size and easy to carry. It contains small parts. Babies who like to put things in their mouths need to play under the supervision of their parents. GiftBaby's intelligence is cultivated from an early age mother should seize the opportunity from an early age and give children a childlike childhood. SafetyThe screwdriver and the groove of the screw fit exactly. The screw is finely polished smoothing edges and corners without burrs for safe playing.