Can train the child's observation ability, the logical thinking, the practical ability, the color knowledge and the figure cognition.<br> Find the corresponding color blocks according to the diagram, observe the patterns on the topic, and stack the color blocks in the correct order.<br> 100 challenge levels, a total of four difficulties, the initial-general-medium-complex.<br> The toy is made of PET material, which is durable, wear-resistant and long time to use.<br> The edge is smooth and safe to kids, it is a perfect educational toy for kids.<br> version:Low version / High version<br> Colour:multicolor<br> Material:plastic<br> Package Contents:<br> 1 set * Logic Jigsaws<br> Only the above package content, other products are not included.<br> Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.