Features: - Children can use building blocks and small trains to use their imagination and creativity to independently complete install it could add fun to the growth of children. - Don't worry about using children's domino trains to harm children. Each component is non-toxic, odor-free, burr-free, sharp-edged, and durable. - The train set toy is suitable for boys and girls aged 3 4 5 6 7 years old. - Children are encouraged to have the imagination of spatial thinking and color recognition, and exercise their practical skills. Specifications: Material: ABS Package included: 1 x Set of block toy Notes: 1. Manual measuring, please allow 1 ~ 3mm error,thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.