Title: Educational toys for children over 3 years old wooden Ming lock Luban unlock lilac lock Size： About 5.5 * 5.5 * 5.5CM Materials: Solid wood Colour： As shown About: Toys are ancient and traditional Chinese intellectual game， a long history， long time to flourish， with a very subtle mathematical theory and physical principles， you will marvel at the wisdom of the ancients! It's the rest of your things， but also cultivate children's spatial imagination， perception good aids great ancient Chinese architectural woodworking technology is exquisite collection of dolls. Even in a short time apart is difficult to fight back， a small but significantly shape people's IQ test， want to try? Then act now!