TICO Mini Bricks are mini building blocks with moving parts! They are the tiniest building blocks in the world! Each unit is 4 mm x 4 mm. The bricks come in a variety of rich colors and shapes. The micro bricks allow you to craft each set with amazing detail, creating realistic miniature models or works of art! TICO stands for Tiny. Intelligent. Collectible. Original. Designed and made in Taiwan.