3in1 Gear Mechanical swimming shark Model Building Blocks

【Must Have For Building Lovers 】 - Have you ever thought about building blocks meeting music box? BUILPLAY building blocks music box let the building blocks move with the music. Imagine kids see a beautiful black ballerina doll spin to the magical Nutcracker - Waltz of the Flowers tune for the first time. A big hit for kids. Kids would love this fun mechanical rotating ocean music box. 【Perfect Gift】 - Great hoilday or birthday gifts for kids. Kids loves building their own music box and will full of accomplishment and joy after completing the work. Meanwhile, it greatly develop kids' logical thinking, manual dexterity and fine spatial skills. Good building toys for girls 8-12. 【Great Details】 - Qualified ABS plastic, safe and no smell. 515 pcs set included some cute and special blocks. Kids absolutely love it. Each piece is well constructed. Cool submarine, lovely marine life and delicate seaweed make into an perfect project. Great details and everything fits together well. The col