RYTECK-INOVATIVE City Nano-Blocks 145pcs Follow The Instructions 5 In 1 Different Option To Build, . Building Blocks Are All About Creative Models Construction Process With Rewarding Sculptural, Figures Results. The Blocks Connect Securely To Create Extremely Detailed Object Of Varying Size And Complexity. Interlocking Blocks Help With Strategic Planning, Motor Skills, And Spatial Awareness. Micro Blocks Are Complex 3d Puzzles That Kids Love Building It Will Help Improve Childrens Imagination and Creativity. Educational value, ncourages patience and focus in children, while developing their logical thinking skills and creativity UNLEASH YOUR CREATIVITY: After you've built the models in the instruction manual, you'll be well-trained to create your own motorized machines with the reusable modules.