Our super-unique blocks let kids design lifelike construction sites! Ideal for creating towers, bridges, buildings and more, the 3-D blocks are precisely related in size, so mixing and matching shapes is a breeze. Plus, the tough plastic builders look like construction girders—perfect for imaginative play! Set comes with 30 blocks in 4 colors—including 22 rectangular blocks in 2 sizes, 4 triangular blocks and 4 octagonal blocks. Largest block measures 6" in length.