1Attractive design and eco-friendly material, anti-rust, no hurt the hands, safe and not easy to short circuit. 2Can DIY a variety of circuit electronic building blocks, with colorful lighting, rotatable features, play the imagination of children, cognitive physics knowledge. 3It can attract children's attention and cultivate children's brain skills, help children's intellectual development and interaction ability. 4Delicate and reliable, can be used as furnishings, or collectibles. 5Wonderful toy set for children. Suitable for children 8 years old and above.
