Magnetic Marble Run Building Blocks Set for Kids – STEM Construction Pipe Track Puzzle Toy Specifications:69 Pcs Shell material: 304 stainless steel

Shell material: 304 stainless steel

no irritation

- Headset interface: USB + 3

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*Note: "Double" variants feature a dual-row crystal border for a more luxurious appearance

Magnetic Marble Run Building Blocks Set for Kids – STEM Construction Pipe Track Puzzle Toy Specifications:69 Pcs Shell material: 304 stainless steelProduct Information: Product Type: Magnetic Marble Run Building Blocks Set Material: Durable Plastic with Magnetic Pieces Recommended Age: 36 Years Skill Development: Creativity, Logical Thinking, Problem Solving, Hand Eye Coordination, and Fine Motor Skills Suitable For: Boys and Girls Assembly Type: DIY Magnetic Construction Toy Available Variants 69 PCS Ball Pipe Set 70 PCS Magnetic Building Blocks 148 PCS Magnetic Building Blocks 200 PCS Magnetic