Accessories Puzzles -Kongming Lock Puzzle Toy Highlights generic brand Kongming Lock Puzzle Toy Description: Kongming lock (also called Luban lock) is from ancient China Great children's puzzle strategic solving toy Be conducive to children's intellectual development Wooden brain teaser condenses with Chinese traditional culture and they are very interesting The toy is difficult to take apart, but it is more difficult to put it back together Good for creative thinking and improve your IQ and EQ. Gift for adults and children Material: wooden Not suitable for children under 3 years old Size Chart: Tetrakaidecahedron Size (L x W x H): Approx. 4.5 x 4.5 x 4.5cm / 1.77 x 1.77 x 1.77inch Lucky Star Size (L x W x H): Approx. 8.5 x 8.5 x 8.5cm / 3.34 x 3.34 x 3.34inch Package includes: 2 pieces Kongming Lock Puzzle Toys Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item Due to manual measurement, there may be 1-2mm error.